---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Thu 03/06/08: 43 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:48 AM - Jeff Paris - prop (THOMAS SMALL) 2. 04:09 AM - Re: Weather contrasts (kmccune) 3. 04:11 AM - Needley engine (kmccune) 4. 04:19 AM - Re: Weather contrasts (Larry H) 5. 05:13 AM - Re: Weather contrasts (Jaybannist@cs.com) 6. 05:22 AM - Re: Weather contrasts (William Dominguez) 7. 05:31 AM - Re: Needley engine (John Short) 8. 06:31 AM - Re: Weather contrasts (steve) 9. 06:34 AM - Re: Needley engine (Larry H) 10. 07:21 AM - Re: Weather contrasts (Larry H) 11. 08:00 AM - Gearbox recall (Roger Lee) 12. 08:06 AM - Re: Tundra Tire Tubes (Roger Lee) 13. 09:20 AM - Re: Weather contrasts (steve) 14. 09:20 AM - Re: Needley engine (hansriet) 15. 10:01 AM - Re: Re: Weather contrasts (Randy L. Thwing) 16. 11:05 AM - Re: Re: Weather contrasts (Larry H) 17. 12:35 PM - Engine (John Short) 18. 12:46 PM - Re: Gearbox recall (JG) 19. 01:26 PM - Re: Engine (hansriet) 20. 01:40 PM - Re: More Corvair stuff and aviation services available..... (ella) 21. 01:56 PM - Corvair/Fly with Gus/Etc. (rbjjr) 22. 02:23 PM - Re: Gearbox recall (Roger Lee) 23. 02:34 PM - Re: Engine (John Bolding) 24. 03:01 PM - Re: Needley engine (kmccune) 25. 03:03 PM - Re: Re: Weather contrasts (Bill Naumuk) 26. 03:05 PM - Re: Corvair/Fly with Gus/Etc. (kmccune) 27. 03:05 PM - Re: Needley engine (Bill Naumuk) 28. 03:22 PM - Re: More Corvair stuff and aviation services available..... (Craig Payne) 29. 03:24 PM - Re: Corvair/Fly with Gus/Etc. (Craig Payne) 30. 03:59 PM - Re: Corvair/Fly with Gus/Etc. (rbjjr) 31. 04:27 PM - Re: Corvair/Fly with Gus/Etc. (Craig Payne) 32. 04:40 PM - Re: More Corvair stuff and aviation services available..... (william Clapp) 33. 04:40 PM - Re: More Corvair stuff and aviation services available..... (william Clapp) 34. 04:52 PM - Re: More Corvair stuff and aviation services available..... (Craig Payne) 35. 05:05 PM - Re: More Corvair stuff and aviation services available..... (Craig Payne) 36. 05:22 PM - Re: Re: Gearbox recall (JG) 37. 05:40 PM - Re: Re: Needley engine (Larry H) 38. 05:46 PM - Re: Re: Engine (Larry H) 39. 06:21 PM - Re: Re: Engine (Jaybannist@cs.com) 40. 07:05 PM - Re: Needley engine (kmccune) 41. 09:45 PM - Re: Gearbox recall (Roger Lee) 42. 09:47 PM - Re: Gearbox recall (Roger Lee) 43. 10:59 PM - Re: Re: Overtrimmed airleron (xl) ________________________________ Message 1 _____________________________________ Time: 02:48:57 AM PST US From: "THOMAS SMALL" Subject: Zenith-List: Jeff Paris - prop do not archive Please forgive the off-topic nature of this post. Jeff Paris, you were first to inquire about prop. E-mails to you keep bouncing, have another address? jeff small ________________________________ Message 2 _____________________________________ Time: 04:09:09 AM PST US Subject: Zenith-List: Re: Weather contrasts From: "kmccune" We had quite a spring teaser here a couple of weeks ago. last Monday ( Feb 25) it made it all the way up to 40F, not bad for a NW WI in Feb. The thing is that on week prior to that it had been -20F, 60 degrees in one week! Its zero right now, going to make it up to 14F this after noon. I am defiantly ready for spring -------- Kevin N701DZ Reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=167980#167980 ________________________________ Message 3 _____________________________________ Time: 04:11:12 AM PST US Subject: Zenith-List: Needley engine From: "kmccune" I posted this in the engines group, but nobody replied. "Does anyone know anything about this engine? http://www.needleyengines.com The engine on the site is 52 hp and 105ft-lbs (at) 2750 and 2550rpm. But they state that they are working on a 4 cylinder 80 hp version. Since its a low rpm engine the might be be high enough to look into for a 701. My question comes about, be cause the site was last updated in 2005 ,they don't answer the phone and their email bounces. Google searches barley bring up anything. I know it sound like belly up to me too, but its interesting enough to ask around." Thanks Kevin -------- Kevin N701DZ Reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=167981#167981 ________________________________ Message 4 _____________________________________ Time: 04:19:29 AM PST US From: Larry H Subject: Re: Zenith-List: Weather contrasts Hey Ron, just think of it this way: we're on the downside of winter now. Hopefully, the "S" is all going to stop here soon and before you know it, we'll be mowing grass again too! I like your apron by the way.....it's quite "becoming"........(becoming WHAT, I don't know yet.) LOLOL..... Regards, Larry H Southwestern Lower Michigan Ron Lendon wrote: Just wanted to whine :-( about the weather. It's been a long winter and I thought it was over. Sunday while driving out to the airport I saw several motorcycles in the almost 50 degree warmth. Yesterday the temp dropped and so did a lot of snow. I did get the patio cleared though so we could have the cook out. Picture at http://picasaweb.google.com/ron.lendon/MarchBBQInMichigan/photo#5174444576183307634 do not archive -------- Ron Lendon, Clinton Township, MI Corvair Zodiac XL, ScrapBuilder ;-) http://www.mykitlog.com/rlendon Read this topic online here: http://forums.matronics.com/viewtopic.php?p=167942#167942 --------------------------------- Never miss a thing. Make Yahoo your homepage. ________________________________ Message 5 _____________________________________ Time: 05:13:11 AM PST US From: Jaybannist@cs.com Subject: Re: Zenith-List: Weather contrasts Looks like a "slow news" day, so here goes-- TEXAS SNOW Jay in Dallas Michael Hilderbrand wrote: >This winter is awful, I agree. My five year plan.... FLORIDA! > >Do not archive. > >Michael Hilderbrand >Derby, Kansas >Http://www.kansasflying.com > > >----- Original Message ---- >From: Ron Lendon >To: zenith-list@matronics.com >Sent: Wednesday, March 5, 2008 8:55:12 PM >Subject: Zenith-List: Weather contrasts > > >Just wanted to whine :-( about the weather. It's been a long winter >and I thought it was over. Sunday while driving out to the airport I >saw several motorcycles in the almost 50 degree warmth. Yesterday the >temp dropped and so did a lot of snow. I did get the patio cleared >though so we could have the cook out. Picture at >http://picasaweb.google.com/ron.lendon/MarchBBQInMichigan/photo#5174444576183307634 > >do not archive > >-------- >Ron Lendon, Clinton Township, MI >Corvair Zodiac XL, ScrapBuilder ;-) >http://www.mykitlog.com/rlendon > > >Read this topic online here: > >http://forums.matronics.com/viewtopic.php?p=167942#167942 > > ________________________________ Message 6 _____________________________________ Time: 05:22:58 AM PST US From: William Dominguez Subject: Re: Zenith-List: Weather contrasts Be careful with Florida. We get nasty hurricanes that enjoy destroying anything they found in GA airports. Orlando is kind of a good compromise, good weather year round and little bit better protected from hurricanes since it is not right at the coast. William Dominguez Zodiac 601XL Plans Miami Florida http://www.geocities.com/bill_dom Michael Hilderbrand wrote: This winter is awful, I agree. My five year plan.... FLORIDA! Do not archive. Michael Hilderbrand Derby, Kansas Http://www.kansasflying.com ----- Original Message ---- From: Ron Lendon Sent: Wednesday, March 5, 2008 8:55:12 PM Subject: Zenith-List: Weather contrasts Just wanted to whine :-( about the weather. It's been a long winter and I thought it was over. Sunday while driving out to the airport I saw several motorcycles in the almost 50 degree warmth. Yesterday the temp dropped and so did a lot of snow. I did get the patio cleared though so we could have the cook out. Picture at ________________________________ Message 7 _____________________________________ Time: 05:31:37 AM PST US From: "John Short" Subject: Re: Zenith-List: Needley engine Kevin: Not sure but you might try @embarqmail.com on the end of the email. We used to have earthlink.net and they forced us to change when Sprint was bought out by Embarq. Good looking engine though. John (scratch building 701) ----- Original Message ----- From: "kmccune" Sent: Thursday, March 06, 2008 6:08 AM Subject: Zenith-List: Needley engine > > I posted this in the engines group, but nobody replied. > > "Does anyone know anything about this engine? > http://www.needleyengines.com > The engine on the site is 52 hp and 105ft-lbs (at) 2750 and 2550rpm. But > they state that they are working on a 4 cylinder 80 hp version. Since its > a low rpm engine the might be be high enough to look into for a 701. > My question comes about, be cause the site was last updated in 2005 ,they > don't answer the phone and their email bounces. Google searches barley > bring up anything. I know it sound like belly up to me too, but its > interesting enough to ask around." > > Thanks > > Kevin > > -------- > Kevin > N701DZ Reserved > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=167981#167981 > > > ________________________________ Message 8 _____________________________________ Time: 06:31:13 AM PST US From: "steve" Subject: Re: Zenith-List: Weather contrasts D a r n, its 74 today with clear skys. But the wind is expected to be 10 to 15 out of the north. Guess I ll be using runway 36. Steve W. A20 Sun Valley Airpark ----- Original Message ----- From: NYTerminat@aol.com To: zenith-list@matronics.com Sent: Wednesday, March 05, 2008 8:47 PM Subject: Re: Zenith-List: Weather contrasts Ron, I don't want to complain but could you stop sending your weather my way :). I am also tired of seeing gray and am looking forward to blue skys. Just when we almost lose all our snow more comes. Lately lots of freezing rain. Upstate NY Bob Spudis In a message dated 3/5/2008 10:00:15 P.M. Eastern Standard Time, rlendon@comcast.net writes: Just wanted to whine :-( about the weather. It's been a long winter and I thought it was over. Sunday while driving out to the airport I saw several motorcycles in the almost 50 degree warmth. Yesterday the temp dropped and so did a lot of snow. I did get the patio cleared though so we could have the cook out. Picture at http://picasaweb.google.com/ron.lendon/MarchBBQInMichigan/photo#517444457 6183307634 do not archive -------- Ron Lendon, Clinton Township, MI ------------------------------------------------------------------------- ----- It's Tax Time! Get tips, forms and advice on AOL Money & Finance. ________________________________ Message 9 _____________________________________ Time: 06:34:16 AM PST US From: Larry H Subject: Re: Zenith-List: Needley engine If this was me and nobody even answers the phone, I would never consider using any of their product. Look at it this way, if you needed parts or service, HOW are you going to get it? I would look at another source of an engine like a Corvair, Subaru, Aero V or any of the other engines available. I'm personally doing the Corvair Conversion for my CH 601 XL. I chose this simply because it's a conversion I can do myself and it will be an engine I can maintain. It will help cut the costs considerably from that of a Rotax or Jabiru. It's just a matter of personal choice I guess. There are a lot of options out here and you'll just have to decide which one will fit yours needs. Larry H N601LL Reserved kmccune wrote: I posted this in the engines group, but nobody replied. "Does anyone know anything about this engine? http://www.needleyengines.com The engine on the site is 52 hp and 105ft-lbs (at) 2750 and 2550rpm. But they state that they are working on a 4 cylinder 80 hp version. Since its a low rpm engine the might be be high enough to look into for a 701. My question comes about, be cause the site was last updated in 2005 ,they don't answer the phone and their email bounces. Google searches barley bring up anything. I know it sound like belly up to me too, but its interesting enough to ask around." Thanks Kevin -------- Kevin N701DZ Reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=167981#167981 --------------------------------- Never miss a thing. Make Yahoo your homepage. ________________________________ Message 10 ____________________________________ Time: 07:21:30 AM PST US From: Larry H Subject: Re: Zenith-List: Weather contrasts Darn Steve, so sorry to hear about your "luck" having to use runway 36 and it ONLY being 74 degrees today (with clear skies tah boot!) You poor, poor fella.......us in the frozen northlands sure do feel really sorry for yah! (NOT!) Seriously, we are happy for you to be able to enjoy what you love doing the most - flying. That's what its all about. Have a good time up there and PLEASE push the warmer weather our way, will yah?? Larry H Frozen Tundra northlands of the midwest....MICHIGAN! steve wrote: D a r n, its 74 today with clear skys. But the wind is expected to be 10 to 15 out of the north. Guess I ll be using runway 36. Steve W. A20 Sun Valley Airpark ----- Original Message ----- From: NYTerminat@aol.com To: zenith-list@matronics.com Sent: Wednesday, March 05, 2008 8:47 PM Subject: Re: Zenith-List: Weather contrasts Ron, I don't want to complain but could you stop sending your weather my way :). I am also tired of seeing gray and am looking forward to blue skys. Just when we almost lose all our snow more comes. Lately lots of freezing rain. Upstate NY Bob Spudis In a message dated 3/5/2008 10:00:15 P.M. Eastern Standard Time, rlendon@comcast.net writes: Just wanted to whine :-( about the weather. It's been a long winter and I thought it was over. Sunday while driving out to the airport I saw several motorcycles in the almost 50 degree warmth. Yesterday the temp dropped and so did a lot of snow. I did get the patio cleared though so we could have the cook out. Picture at http://picasaweb.google.com/ron.lendon/MarchBBQInMichigan/photo#5174444576183307634 do not archive -------- Ron Lendon, Clinton Township, MI --------------------------------- It's Tax Time! Get tips, forms and advice on AOL Money & Finance. href="http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. ________________________________ Message 11 ____________________________________ Time: 08:00:12 AM PST US Subject: Zenith-List: Gearbox recall From: "Roger Lee" Hi All, If any of you need your gearbox done under the Rotax recall, I am in Tucson Az. and based out of Ryan Airfield. No cost to you if you fly in and only shipping if you send it to me. Shipping is cheap. If you fly in I have a 2.5 hr. turn around and your on your way. If you ship it I have a 1 day turn around. I am an authorized and newly certified Rotax service center under their new certification program with 7 years of Rotax experience. Let me know. I have a number of gearboxes coming in so let me know so I can make sure I have enough gearboxes on hand. By the end of May I will be a full blown one stop shop for all your needs. Inspections, service (airframe and engine, dynamic prop balancing, ect..) I'm quick and very thorough. I specialize in LSA's and Rotax 912's, but will do experimental, too. I have a Flight Design CT myself and have many happy clients. If you have never had your prop checked for blade pitch you should and I very highly recommend a dynamic balance as most LSA are out of balance. If you prop needs adjusting we can do that in short order. Hopefully your WOT rpm is around 5500rpm. You don't see many props from the MFG in balance or that has some time on it and this can be attributed to a number of reasons. I started doing them because I found my CT was out and have seen most other LSA's out of balance and finding someone to do a good dynamic balance is a challange. It is good to do for the health of your engine and components. If you can feel it in the stick it is way out and most times you can't feel it at all, but it is still out of balance. You can always find me or my articles on the ctflyer.com website or on the Matronics Rotax engine web site. email: ssadiver1(at)yahoo.com -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168035#168035 ________________________________ Message 12 ____________________________________ Time: 08:06:25 AM PST US Subject: Zenith-List: Re: Tundra Tire Tubes From: "Roger Lee" A standard 6.00x6 tube is 17x6. Just get the 6.00x6 tube and you are fine. My advise is to spend the couple of extra dollars and get the Michellin AirStop tubes. They are butyl, not rubber so they don't leak air like rubber and come with either straight or 90 degree stems. The 15x6 is a smaller tube size for a lesser used tire. You can get tubes and tires very reasonably at Desser Tire or Tires Unlimited online. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168037#168037 ________________________________ Message 13 ____________________________________ Time: 09:20:28 AM PST US From: "steve" Subject: Zenith-List: Re: Weather contrasts All seriousness aside. Seventy four today and that is sooo nice, but,... When I moved here it was 122 and I almost fainted in the Home Depot store. It gets so hot that your training about density altitude really comes into play... I m good up to 112 because it really is a dry heat. Thats no lie. But above that temperatire even the birds fly in and ask for a drink.... Steve ________________________________ Message 14 ____________________________________ Time: 09:20:59 AM PST US Subject: Zenith-List: Re: Needley engine From: "hansriet" The last update on their website is from 2005? That tells you something. Hans Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168051#168051 ________________________________ Message 15 ____________________________________ Time: 10:01:19 AM PST US From: "Randy L. Thwing" Subject: Re: Zenith-List: Re: Weather contrasts Do not archive Yes, dries skin, dries bones, etc.! Randy, Las Vegas 112 really is a dry heat. Steve ________________________________ Message 16 ____________________________________ Time: 11:05:55 AM PST US From: Larry H Subject: Re: Zenith-List: Re: Weather contrasts Totally understandable Steve. I think every place you go, has it own set of problem weather patterns. I couldn't handle your high temps. I'd rather put up with 3 months of snow and have most all the rest of the year at least be bearable. We do have temps over 100 in late August and September here (South Bend Indiana area) but it only last for 3-4 weeks usually. The rest of the times our temps gradually get cooler and then warms back up again during the rest of the year. I can gage our temps around here and call them "cool, a bit colder, then warm and sometimes hot". Your temps to me would be "nice, really warmer, really hot, and then living HELL"..........lol... The nice and warm part I could handle...not the really hot and the last one... Larry H steve wrote: All seriousness aside. Seventy four today and that is sooo nice, but,... When I moved here it was 122 and I almost fainted in the Home Depot store. It gets so hot that your training about density altitude really comes into play... I m good up to 112 because it really is a dry heat. Thats no lie. But above that temperatire even the birds fly in and ask for a drink.... Steve --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. ________________________________ Message 17 ____________________________________ Time: 12:35:08 PM PST US From: "John Short" Subject: Zenith-List: Engine I'm thinking of going with a 0-200 engine and wanted to know. What additional bracing or structure is needed when using a heavier engine. I think some of you guys with the Corvair are about the same weight. The plans say 195 I think but I know there are alot of installs out there over this. I really would like to go with an aircraft engine if possible, even though there are some really good conversions out there. I would greatly appreciate any advice John (Scratch building 701) Kaufman, TX CREATIVE SIGNWORKS 1168 Byron Rd. Kaufman, Tx 75142 John & Mindy Short 972-962-7464 Cell: 214-240-3815 www.creative-sign-works.com creativesigns@embarqmail.com ________________________________ Message 18 ____________________________________ Time: 12:46:12 PM PST US From: "JG" Subject: Re: Zenith-List: Gearbox recall Roger, <....Hopefully your WOT rpm is around 5500rpm....> I thought Rotax recommends 5800rpm..... Please comment...... JG .. ----- Original Message ----- From: Roger Lee To: zenith-list@matronics.com Sent: Friday, March 07, 2008 2:57 AM Subject: Zenith-List: Gearbox recall Hi All, If any of you need your gearbox done under the Rotax recall, I am in Tucson Az. and based out of Ryan Airfield. No cost to you if you fly in and only shipping if you send it to me. Shipping is cheap. If you fly in I have a 2.5 hr. turn around and your on your way. If you ship it I have a 1 day turn around. I am an authorized and newly certified Rotax service center under their new certification program with 7 years of Rotax experience. Let me know. I have a number of gearboxes coming in so let me know so I can make sure I have enough gearboxes on hand. By the end of May I will be a full blown one stop shop for all your needs. Inspections, service (airframe and engine, dynamic prop balancing, ect..) I'm quick and very thorough. I specialize in LSA's and Rotax 912's, but will do experimental, too. I have a Flight Design CT myself and have many happy clients. If you have never had your prop checked for blade pitch you should and I very highly recommend a dynamic balance as most LSA are out of balance. If you prop needs adjusting we can do that in short order. Hopefully your WOT rpm is around 5500rpm. You don't see many props from the MFG in balance or that has some time on it and this can be attributed to a number of reasons. I started doing them because I found my CT was out and have seen most other LSA's out of balance and finding someone to do a good dynamic balance is a challange. It is good to do for the health of your engine and components. If you can feel it in the stick it is way out and most times you can't feel it at all, but it is still out of balance. You can always find me or my articles on the ctflyer.com website or on the Matronics Rotax engine web site. email: ssadiver1(at)yahoo.com -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168035#168035 ________________________________ Message 19 ____________________________________ Time: 01:26:04 PM PST US Subject: Zenith-List: Re: Engine From: "hansriet" I have also a question regarding this: What type of O-200 to use? Are there any edition that we should walk away from? I always imagined going with a Rotax or Jabiru, but that's just going to be too expensive. Hans Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168099#168099 ________________________________ Message 20 ____________________________________ Time: 01:40:00 PM PST US From: "ella" Subject: Re: Zenith-List: More Corvair stuff and aviation services available..... Hi Does the Corvair engine have a mech. fuel pump or electric Thanks Don ----- Original Message ----- From: william Clapp To: krnet@mylist.net ; corvaircraft@mylist.net ; Zenith Sent: Wednesday, March 05, 2008 3:21 AM Subject: Zenith-List: More Corvair stuff and aviation services available..... Howdy folks. For that last couple years I have been working closely with some people to achieve their goals of flight. Flying around the US and getting to know many of you has led me to expand a bit more of the parts and services that I am providing. I am currently working on renewing my CFI for Light Sport to help with instruction and helping pilots grow in their skills. I also have also included Prepurchase inspection and Ferry capabilities to the services I provide. These services will be added to my website (billclapp.com) shortly. Since much of my time still has to be at home (single dad) I have also increased my capabilities in servicing corvair engines and helping builders with their installations. My Corvair services page will show how I can help. New additions to the page are custom rebuilt distributors, custom exhaust systems and parts, and my prop hub design that is available. Call or email me for availability and use. Much of my time is spent in helping individual builders with their individual needs who have their aiplanes here at my shop so I am limited with the quantity of service I can provide. However, you think that I can help you pleas feel free to contact me and I'll be glad to see whether I can help or direct you to a cource that can fill your needs. Thank you...Bill Clapp Bill Clapp - KR2S builder and pilot Valdosta GA www.billclapp.com ------------------------------------------------------------------------- ----- Be a better friend, newshound, and ________________________________ Message 21 ____________________________________ Time: 01:56:51 PM PST US Subject: Zenith-List: Corvair/Fly with Gus/Etc. From: "rbjjr" The recent discussions about the Corvair engine are very intriguing. I keep watching the Flywithgus.com 701 test flight video from his site. The setup looks good, sounds good and seems to fly well. He got off the ground in a very short distance. To me the Corvair has a lot of potential. Plus, the price is right. The one big question is: The designer has designated a certain weight allowance for the engine in the 701 and the Corvair is clearly over this. How do we reconcile this fact? In other words, given what the designer has specified, can the Corvair really be safely used in the 701? What are the issues that have to be dealt with? I'm no expert and would appreciate yr thoughts. Thanks Burke Johnson Irvington, VA CH 701 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168104#168104 ________________________________ Message 22 ____________________________________ Time: 02:23:26 PM PST US Subject: Zenith-List: Re: Gearbox recall From: "Roger Lee" Hi JG, You can run the Rotax 912uls between 5500-5800 rpm for 5 minutes. The 5 minutes only part should tell you something. If you do not have to run it up over 5500 rpm for a specific reason then why would you want the extra wear and tear. If you have to have the extra rpm/hp then it's there, but it's much better on the system if you don't have to. That's why they give you the 5500 max continuous spec. The majority of people I know use the 5500 rpm for their WOT. With a ground adjustable prop or a fixed pitch you are trying to get it set for the best balance of speed, climb, fuel and over all performance as you can. 5500rpm pretty much meets this need. We're just trying to find a happy median for the aircraft and engine combination. I'm not saying you can't run it over 5500, but if you don't need to???? In all of my Rotax classes over the years 5500 WOT has been the benchmark and then a nice cruise rpm of 4900-5100. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168108#168108 ________________________________ Message 23 ____________________________________ Time: 02:34:24 PM PST US From: "John Bolding" Subject: Re: Zenith-List: Engine When I wrote Chris a letter about the fact that I WAS using the Corvair and did I need to hire him or another aero engineer to look over the front of the 701 for areas of concern, his written reply was "use the Corvair, no modifications necessary". It's in the archives. As you state, the weight of the Vair and 0-200 are identical,, if you want to get serious about weight on the certified engines you might look into the C-90 , same displacement as the 0-200 but a few pounds lighter. Chased all that down a few yrs ago but memory has faded. LOW&SLO John ----- Original Message ----- From: John Short To: zenith-list@matronics.com Sent: Thursday, March 06, 2008 2:31 PM Subject: Zenith-List: Engine I'm thinking of going with a 0-200 engine and wanted to know. What additional bracing or structure is needed when using a heavier engine. I think some of you guys with the Corvair are about the same weight. The plans say 195 I think but I know there are alot of installs out there over this. I really would like to go with an aircraft engine if possible, even though there are some really good conversions out there. I would greatly appreciate any advice John (Scratch building 701) Kaufman, TX CREATIVE SIGNWORKS 1168 Byron Rd. Kaufman, Tx 75142 John & Mindy Short 972-962-7464 Cell: 214-240-3815 www.creative-sign-works.com creativesigns@embarqmail.com ________________________________ Message 24 ____________________________________ Time: 03:01:30 PM PST US Subject: Zenith-List: Re: Needley engine From: "kmccune" There are a lot of reasons for not updating websites, heck mine has not been updated for 3 years, OK its a personal/family one, but it is right up my alley...jobs wise. As for the phone, my best guess is that they are a 1-5 guys place, maybe out of a garage? As for parts they state that they have used industry standard car parts for th wear items. It IS a nice looking little engine, sorta like a continental 65, but new. This is why I'm looking into it ( in 4 cylinder mode). My big picture still includes the Raven G13BB, but I'd love an air cooled engine. I still have not ruled out the Corvair, but it seems that by the time you put a 5th bearing on it, well it then weighs even more. I'll try the email trick. Thanks Kevin -------- Kevin N701DZ Reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168114#168114 ________________________________ Message 25 ____________________________________ Time: 03:03:09 PM PST US From: "Bill Naumuk" Subject: Re: Zenith-List: Re: Weather contrasts Defiantly or definitely? do not archive ----- Original Message ----- From: "kmccune" Sent: Thursday, March 06, 2008 7:05 AM Subject: Zenith-List: Re: Weather contrasts > > We had quite a spring teaser here a couple of weeks ago. last Monday ( Feb > 25) it made it all the way up to 40F, not bad for a NW WI in Feb. The > thing is that on week prior to that it had been -20F, 60 degrees in one > week! Its zero right now, going to make it up to 14F this after noon. I > am defiantly ready for spring > > -------- > Kevin > N701DZ Reserved > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=167980#167980 > > > ________________________________ Message 26 ____________________________________ Time: 03:05:49 PM PST US Subject: Zenith-List: Re: Corvair/Fly with Gus/Etc. From: "kmccune" See John Bolding post in the below thread. http://forums.matronics.com/viewtopic.php?t=40352 -------- Kevin N701DZ Reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168116#168116 ________________________________ Message 27 ____________________________________ Time: 03:05:50 PM PST US From: "Bill Naumuk" Subject: Re: Zenith-List: Needley engine All- From experience, WW isn't the best communicator around, either. Bill ----- Original Message ----- From: Larry H To: zenith-list@matronics.com Sent: Thursday, March 06, 2008 9:31 AM Subject: Re: Zenith-List: Needley engine If this was me and nobody even answers the phone, I would never consider using any of their product. Look at it this way, if you needed parts or service, HOW are you going to get it? I would look at another source of an engine like a Corvair, Subaru, Aero V or any of the other engines available. I'm personally doing the Corvair Conversion for my CH 601 XL. I chose this simply because it's a conversion I can do myself and it will be an engine I can maintain. It will help cut the costs considerably from that of a Rotax or Jabiru. It's just a matter of personal choice I guess. There are a lot of options out here and you'll just have to decide which one will fit yours needs. Larry H N601LL Reserved kmccune wrote: I posted this in the engines group, but nobody replied. "Does anyone know anything about this engine? http://www.needleyengines.com The engine on the site is 52 hp and 105ft-lbs (at) 2750 and 2550rpm. But they state that they are working on a 4 cylinder 80 hp version. Since its a low rpm engine the might be be high enough to look into for a 701. My question comes about, be cause the site was last updated in 2005 ,they don't answer the phone and their email bounces. Google searches barley bring up anything. I know it sound like belly up to me too, but its interesting enough to ask around." Thanks Kevin -------- Kevin N701DZ Reserved Read this topic online ________________________________ Message 28 ____________________________________ Time: 03:22:51 PM PST US From: "Craig Payne" Subject: RE: Zenith-List: More Corvair stuff and aviation services available..... The engine in a car has a mechanical pump. In William Wynne's standard conversion the mechanical pump is discarded and two specific identical Facet electric pumps are plumbed in series. Only one pump is powered at a time. The pump model is chosen such that fuel will flow when the pump is not powered. An all-electric fuel system sounds scary but the (dual) points/coil ignition system used also requires power. But the auto conversions with an ECU (Subaru I believe) is in the same boat. I believe that William has run tests that show that if your alternator dies the battery can run the pumps and ignition for an hour or so. -- Craig From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of ella Sent: Friday, March 07, 2008 11:38 AM Subject: Re: Zenith-List: More Corvair stuff and aviation services available..... Hi Does the Corvair engine have a mech. fuel pump or electric Thanks Don ----- Original Message ----- From: william Clapp Sent: Wednesday, March 05, 2008 3:21 AM Subject: Zenith-List: More Corvair stuff and aviation services available..... Howdy folks. For that last couple years I have been working closely with some people to achieve their goals of flight. Flying around the US and getting to know many of you has led me to expand a bit more of the parts and services that I am providing. I am currently working on renewing my CFI for Light Sport to help with instruction and helping pilots grow in their skills. I also have also included Prepurchase inspection and Ferry capabilities to the services I provide. These services will be added to my website (billclapp.com) shortly. Since much of my time still has to be at home (single dad) I have also increased my capabilities in servicing corvair engines and helping builders with their installations. My Corvair services page will show how I can help. New additions to the page are custom rebuilt distributors, custom exhaust systems and parts, and my prop hub design that is available. Call or email me for availability and use. Much of my time is spent in helping individual builders with their individual needs who have their aiplanes here at my shop so I am limited with the quantity of service I can provide. However, you think that I can help you pleas feel free to contact me and I'll be glad to see whether I can help or direct you to a cource that can fill your needs. Thank you...Bill Clapp Bill Clapp - KR2S builder and pilot Valdosta GA www.billclapp.com _____ Be a better friend, newshound, and href="http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref "http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ________________________________ Message 29 ____________________________________ Time: 03:24:50 PM PST US From: "Craig Payne" Subject: RE: Zenith-List: Corvair/Fly with Gus/Etc. William and Gus are working on the Corvair on the 701 with the cooperation of Zenith. Ask William for specifics. -- Craig -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of rbjjr Sent: Thursday, March 06, 2008 2:54 PM Subject: Zenith-List: Corvair/Fly with Gus/Etc. The recent discussions about the Corvair engine are very intriguing. I keep watching the Flywithgus.com 701 test flight video from his site. The setup looks good, sounds good and seems to fly well. He got off the ground in a very short distance. To me the Corvair has a lot of potential. Plus, the price is right. The one big question is: The designer has designated a certain weight allowance for the engine in the 701 and the Corvair is clearly over this. How do we reconcile this fact? In other words, given what the designer has specified, can the Corvair really be safely used in the 701? What are the issues that have to be dealt with? I'm no expert and would appreciate yr thoughts. Thanks Burke Johnson Irvington, VA CH 701 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168104#168104 ________________________________ Message 30 ____________________________________ Time: 03:59:11 PM PST US Subject: Zenith-List: Re: Corvair/Fly with Gus/Etc. From: "rbjjr" Interesting... I had no idea. Burke Johnson Irvington, VA CH701 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168126#168126 ________________________________ Message 31 ____________________________________ Time: 04:27:16 PM PST US From: "Craig Payne" Subject: RE: Zenith-List: Corvair/Fly with Gus/Etc. "Cooperation" may be too strong a word. Zenith knows the specifics of William's Corvair/XL installation and the weight numbers and thinks it is feasible. William cares very much what the factory thinks. As far as kit builders go Zenith strikes me as the most open-minded. Their web site says this about the 601XL (not the 701): "While all aircraft are designed within certain power and engine weight guidelines, Chris Heintz did not design the ZODIAC XL "around" a particular engine - to maximize the customer's choice of installed powerplant. Recommended power is 80 to 125 horsepower, up to 300 lbs. installed weight" http://www.zenithair.com/zodiac/xl/xl-engine.html This is quite a contrast with (for example) the RV-12 which looks like it will be hard to adapt to an engine other than the Rotax (a fine but expensive engine). -- Craig -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Craig Payne Sent: Thursday, March 06, 2008 4:22 PM Subject: RE: Zenith-List: Corvair/Fly with Gus/Etc. William and Gus are working on the Corvair on the 701 with the cooperation of Zenith. Ask William for specifics. -- Craig -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of rbjjr Sent: Thursday, March 06, 2008 2:54 PM Subject: Zenith-List: Corvair/Fly with Gus/Etc. The recent discussions about the Corvair engine are very intriguing. I keep watching the Flywithgus.com 701 test flight video from his site. The setup looks good, sounds good and seems to fly well. He got off the ground in a very short distance. To me the Corvair has a lot of potential. Plus, the price is right. The one big question is: The designer has designated a certain weight allowance for the engine in the 701 and the Corvair is clearly over this. How do we reconcile this fact? In other words, given what the designer has specified, can the Corvair really be safely used in the 701? What are the issues that have to be dealt with? I'm no expert and would appreciate yr thoughts. Thanks Burke Johnson Irvington, VA CH 701 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168104#168104 ________________________________ Message 32 ____________________________________ Time: 04:40:50 PM PST US From: william Clapp Subject: RE: Zenith-List: More Corvair stuff and aviation services available..... Craig - you are partially correct. We did have an airplane have an emergency landing due to low battery voltage and the pumps shut down and engine quit. That is why I like the gravity feed system. If you have the sual pumps then insure that you have a constant 12v to run the system. Call me for more info. 229-506 7741 Bill Craig Payne wrote: v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} The engine in a car has a mechanical pump. In William Wynnes standard conversion the mechanical pump is discarded and two specific identical Facet electric pumps are plumbed in series. Only one pump is powered at a time. The pump model is chosen such that fuel will flow when the pump is not powered. An all-electric fuel system sounds scary but the (dual) points/coil ignition system used also requires power. But the auto conversions with an ECU (Subaru I believe) is in the same boat. I believe that William has run tests that show that if your alternator dies the battery can run the pumps and ignition for an hour or so. -- Craig From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of ella Sent: Friday, March 07, 2008 11:38 AM Subject: Re: Zenith-List: More Corvair stuff and aviation services available..... Hi Does the Corvair engine have a mech. fuel pump or electric Thanks Don ----- Original Message ----- From: william Clapp To: krnet@mylist.net ; corvaircraft@mylist.net ; Zenith Sent: Wednesday, March 05, 2008 3:21 AM Subject: Zenith-List: More Corvair stuff and aviation services available..... Howdy folks. For that last couple years I have been working closely with some people to achieve their goals of flight. Flying around the US and getting to know many of you has led me to expand a bit more of the parts and services that I am providing. I am currently working on renewing my CFI for Light Sport to help with instruction and helping pilots grow in their skills. I also have also included Prepurchase inspection and Ferry capabilities to the services I provide. These services will be added to my website (billclapp.com) shortly. Since much of my time still has to be at home (single dad) I have also increased my capabilities in servicing corvair engines and helping builders with their installations. My Corvair services page will show how I can help. New additions to the page are custom rebuilt distributors, custom exhaust systems and parts, and my prop hub design that is available. Call or email me for availability and use. Much of my time is spent in helping individual builders with their individual needs who have their aiplanes here at my shop so I am limited with the quantity of service I can provide. However, you think that I can help you pleas feel free to contact me and I'll be glad to see whether I can help or direct you to a cource that can fill your needs. Thank you...Bill Clapp Bill Clapp - KR2S builder and pilot Valdosta GA www.billclapp.com --------------------------------- Be a better friend, newshound, and href="http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c http://www.matronics.com/Navigator?Zenith-List http://forums.matronics.com http://www.matronics.com/contribution Bill Clapp - KR2S builder and pilot Valdosta GA www.billclapp.com --------------------------------- Never miss a thing. Make Yahoo your homepage. ________________________________ Message 33 ____________________________________ Time: 04:40:50 PM PST US From: william Clapp Subject: Re: Zenith-List: More Corvair stuff and aviation services available..... The original engine has a mechanical fuel pump. Some people opt to use this but some have switched to electric pumps or like me to gravity feed (gravity dont quit) All these systems can work if thought through properly. Bill ella wrote: Hi Does the Corvair engine have a mech. fuel pump or electric Thanks Don ----- Original Message ----- From: william Clapp To: krnet@mylist.net ; corvaircraft@mylist.net ; Zenith Sent: Wednesday, March 05, 2008 3:21 AM Subject: Zenith-List: More Corvair stuff and aviation services available..... Howdy folks. For that last couple years I have been working closely with some people to achieve their goals of flight. Flying around the US and getting to know many of you has led me to expand a bit more of the parts and services that I am providing. I am currently working on renewing my CFI for Light Sport to help with instruction and helping pilots grow in their skills. I also have also included Prepurchase inspection and Ferry capabilities to the services I provide. These services will be added to my website (billclapp.com) shortly. Since much of my time still has to be at home (single dad) I have also increased my capabilities in servicing corvair engines and helping builders with their installations. My Corvair services page will show how I can help. New additions to the page are custom rebuilt distributors, custom exhaust systems and parts, and my prop hub design that is available. Call or email me for availability and use. Much of my time is spent in helping individual builders with their individual needs who have their aiplanes here at my shop so I am limited with the quantity of service I can provide. However, you think that I can help you pleas feel free to contact me and I'll be glad to see whether I can help or direct you to a cource that can fill your needs. Thank you...Bill Clapp Bill Clapp - KR2S builder and pilot Valdosta GA www.billclapp.com --------------------------------- Be a better friend, newshound, and href="http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c Bill Clapp - KR2S builder and pilot Valdosta GA www.billclapp.com --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. ________________________________ Message 34 ____________________________________ Time: 04:52:12 PM PST US From: "Craig Payne" Subject: RE: Zenith-List: More Corvair stuff and aviation services available..... Actually I'm recalling a test on a test stand on the ground where the alternator was deliberately disconnected and the engine allowed to run till it died. I'll see if I can find the entry on William's web site. -- Craig From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of william Clapp Sent: Thursday, March 06, 2008 5:36 PM Subject: RE: Zenith-List: More Corvair stuff and aviation services available..... Craig - you are partially correct. We did have an airplane have an emergency landing due to low battery voltage and the pumps shut down and engine quit. That is why I like the gravity feed system. If you have the sual pumps then insure that you have a constant 12v to run the system. Call me for more info. 229-506 7741 Bill Craig Payne wrote: The engine in a car has a mechanical pump. In William Wynne's standard conversion the mechanical pump is discarded and two specific identical Facet electric pumps are plumbed in series. Only one pump is powered at a time. The pump model is chosen such that fuel will flow when the pump is not powered. An all-electric fuel system sounds scary but the (dual) points/coil ignition system used also requires power. But the auto conversions with an ECU (Subaru I believe) is in the same boat. I believe that William has run tests that show that if your alternator dies the battery can run the pumps and ignition for an hour or so. -- Craig From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of ella Sent: Friday, March 07, 2008 11:38 AM Subject: Re: Zenith-List: More Corvair stuff and aviation services available..... Hi Does the Corvair engine have a mech. fuel pump or electric Thanks Don ----- Original Message ----- From: william Clapp Sent: Wednesday, March 05, 2008 3:21 AM Subject: Zenith-List: More Corvair stuff and aviation services available..... Howdy folks. For that last couple years I have been working closely with some people to achieve their goals of flight. Flying around the US and getting to know many of you has led me to expand a bit more of the parts and services that I am providing. I am currently working on renewing my CFI for Light Sport to help with instruction and helping pilots grow in their skills. I also have also included Prepurchase inspection and Ferry capabilities to the services I provide. These services will be added to my website (billclapp.com ) shortly. Since much of my time still has to be at home (single dad) I have also increased my capabilities in servicing corvair engines and helping builders with their installations. My Corvair services page will show how I can help. New additions to the page are custom rebuilt distributors, custom exhaust systems and parts, and my prop hub design that is available. Call or email me for availability and use. Much of my time is spent in helping individual builders with their individual needs who have their aiplanes here at my shop so I am limited with the quantity of service I can provide. However, you think that I can help you pleas feel free to contact me and I'll be glad to see whether I can help or direct you to a cource that can fill your needs. Thank you...Bill Clapp Bill Clapp - KR2S builder and pilot Valdosta GA www.billclapp.com _____ Be a better friend, newshound, and href="http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref "http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c http://www.matronics.com/Navigator?Zenith-List http://forums.matronics.com http://www.matronics.com/contribution ________________________________ Message 35 ____________________________________ Time: 05:05:17 PM PST US From: "Craig Payne" Subject: RE: Zenith-List: More Corvair stuff and aviation services available..... http://www.flycorvair.com/hangar0406.html "In the above photo you can see the volt meter on the Dynomometer with Dr. Ray's engine running at full power. Notice that it only reads 9.5 volts. This is because we generally run engines without charging systems on the dyno. After dozens of starts and hours of running, the voltage drops in the small battery. Because our Dual Ignition System is based on points, it is not troubled by voltage this low. Measurement of the torque output of the engine shows no effect." http://www.flycorvair.com/hangar1007.html "One of the most important aspects of the ignition system is that it's low voltage tolerant and a low power consumer. There's a lot of theoretically great electronic systems that work fantastically as long as there's more than 11.5 volts available and a steady flow of 10 amps to power it. In the world of flying, where you could have an alternator or voltage regulator failure, and be reduced to the amount of electrical power stored in your battery, these electronic systems are not acceptable. A Corvair engine running one of my ignition systems will run for hours on the battery that started it. The points system will work all the way down to the 9 volt range. Electronic ignitions with computers on other alternative engines have demonstrated as little as 20 minutes flight time with very serious consequences after a charging system failure." It is true that this doesn't factor in the electrical consumption of the fuel pumps. On a 601XL (unless you want to buy the 601HD header tank I have lying around) gravity feed isn't an option. For a 601XL Corvair I would lean towards a larger battery than in (say) a Jabiru configuration. -- Craig From: Craig Payne [mailto:craig@craigandjean.com] Sent: Thursday, March 06, 2008 5:49 PM Subject: RE: Zenith-List: More Corvair stuff and aviation services available..... Actually I'm recalling a test on a test stand on the ground where the alternator was deliberately disconnected and the engine allowed to run till it died. I'll see if I can find the entry on William's web site. -- Craig From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of william Clapp Sent: Thursday, March 06, 2008 5:36 PM Subject: RE: Zenith-List: More Corvair stuff and aviation services available..... Craig - you are partially correct. We did have an airplane have an emergency landing due to low battery voltage and the pumps shut down and engine quit. That is why I like the gravity feed system. If you have the sual pumps then insure that you have a constant 12v to run the system. Call me for more info. 229-506 7741 Bill Craig Payne wrote: The engine in a car has a mechanical pump. In William Wynne's standard conversion the mechanical pump is discarded and two specific identical Facet electric pumps are plumbed in series. Only one pump is powered at a time. The pump model is chosen such that fuel will flow when the pump is not powered. An all-electric fuel system sounds scary but the (dual) points/coil ignition system used also requires power. But the auto conversions with an ECU (Subaru I believe) is in the same boat. I believe that William has run tests that show that if your alternator dies the battery can run the pumps and ignition for an hour or so. -- Craig From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of ella Sent: Friday, March 07, 2008 11:38 AM Subject: Re: Zenith-List: More Corvair stuff and aviation services available..... Hi Does the Corvair engine have a mech. fuel pump or electric Thanks Don ----- Original Message ----- From: william Clapp Sent: Wednesday, March 05, 2008 3:21 AM Subject: Zenith-List: More Corvair stuff and aviation services available..... Howdy folks. For that last couple years I have been working closely with some people to achieve their goals of flight. Flying around the US and getting to know many of you has led me to expand a bit more of the parts and services that I am providing. I am currently working on renewing my CFI for Light Sport to help with instruction and helping pilots grow in their skills. I also have also included Prepurchase inspection and Ferry capabilities to the services I provide. These services will be added to my website (billclapp.com ) shortly. Since much of my time still has to be at home (single dad) I have also increased my capabilities in servicing corvair engines and helping builders with their installations. My Corvair services page will show how I can help. New additions to the page are custom rebuilt distributors, custom exhaust systems and parts, and my prop hub design that is available. Call or email me for availability and use. Much of my time is spent in helping individual builders with their individual needs who have their aiplanes here at my shop so I am limited with the quantity of service I can provide. However, you think that I can help you pleas feel free to contact me and I'll be glad to see whether I can help or direct you to a cource that can fill your needs. Thank you...Bill Clapp Bill Clapp - KR2S builder and pilot Valdosta GA www.billclapp.com _____ Be a better friend, newshound, and href="http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref "http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c http://www.matronics.com/Navigator?Zenith-List http://forums.matronics.com http://www.matronics.com/contribution ________________________________ Message 36 ____________________________________ Time: 05:22:49 PM PST US From: "JG" Subject: Re: Zenith-List: Re: Gearbox recall I'm still a bit unsure about this engine loading... I've always set up by the book for 5800 WOT, and cruise at around 5000. If the prop is pitched for 5500 WOT then I can maintain the same cruise speed with lower rpm. But of course the same cruise speed requires the same power output, so the engine is running at a higher torque to produce that same output. Nothing is for free here..... 5500 for max continuous only applies if WOT is 5800. If WOT is 5500 then what should max continuous be?? For the same % of full power, that would be maybe 5200?? In which case cruising at 5100 is getting pretty near max continuous..... I'm not wanting to run anywhere near max continuous. I know some who do prefer to pitch up courser so that they are able to cruise at lower rpm, but thought that this was not advisable.... So do the Rotax classes indicate that it's preferable to set up for 5500 rather than 5800 WOT?? JG ----- Original Message ----- From: Roger Lee To: zenith-list@matronics.com Sent: Friday, March 07, 2008 9:19 AM Subject: Zenith-List: Re: Gearbox recall Hi JG, You can run the Rotax 912uls between 5500-5800 rpm for 5 minutes. The 5 minutes only part should tell you something. If you do not have to run it up over 5500 rpm for a specific reason then why would you want the extra wear and tear. If you have to have the extra rpm/hp then it's there, but it's much better on the system if you don't have to. That's why they give you the 5500 max continuous spec. The majority of people I know use the 5500 rpm for their WOT. With a ground adjustable prop or a fixed pitch you are trying to get it set for the best balance of speed, climb, fuel and over all performance as you can. 5500rpm pretty much meets this need. We're just trying to find a happy median for the aircraft and engine combination. I'm not saying you can't run it over 5500, but if you don't need to???? In all of my Rotax classes over the years 5500 WOT has been the benchmark and then a nice cruise rpm of 4900-5100. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168108#168108 ________________________________ Message 37 ____________________________________ Time: 05:40:26 PM PST US From: Larry H Subject: Re: Zenith-List: Re: Needley engine If you're not needing a bigger engine, the one I would want is the Aero-Conversions "Aero-V". Its a brand new conversion motor that YOU assemble. They supply all the parts and a video to follow along with. It's an 80 HP motor, brand new and the cost is $6495. This is the engine that the Sonex builders use. It weighs full complete at 161 pounds. Here is their website if you or anyone else is interested: http://www.aeroconversions.com/aero_vee_2002.html If I was building a 701 and didn't need the extra power, this is the one I would build.... Larry H 601 XL kmccune wrote: There are a lot of reasons for not updating websites, heck mine has not been updated for 3 years, OK its a personal/family one, but it is right up my alley...jobs wise. As for the phone, my best guess is that they are a 1-5 guys place, maybe out of a garage? As for parts they state that they have used industry standard car parts for th wear items. It IS a nice looking little engine, sorta like a continental 65, but new. This is why I'm looking into it ( in 4 cylinder mode). My big picture still includes the Raven G13BB, but I'd love an air cooled engine. I still have not ruled out the Corvair, but it seems that by the time you put a 5th bearing on it, well it then weighs even more. I'll try the email trick. Thanks Kevin -------- Kevin N701DZ Reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168114#168114 --------------------------------- ________________________________ Message 38 ____________________________________ Time: 05:46:29 PM PST US From: Larry H Subject: Re: Zenith-List: Re: Engine Hans, You might want to consider doing a WW Corvair Conversion. The cost will be about 1/3 that of a new Rotax or Jabiru (if not more) and it will be an engine you can maintain yourself. William Wynne is out of Orange Park Florida and has been helping quite a huge movement of builders to convert the Corvair engine into a 100 HP air cooled, 6 cylinder engine. He does offer to build an engine up for you if you don't want to do it yourself. Here is his website: www.flycorvair.com Larry H Following WW Corvair Conversion Manual Zodiac CH 601 XL hansriet wrote: I have also a question regarding this: What type of O-200 to use? Are there any edition that we should walk away from? I always imagined going with a Rotax or Jabiru, but that's just going to be too expensive. Hans Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168099#168099 --------------------------------- Never miss a thing. Make Yahoo your homepage. ________________________________ Message 39 ____________________________________ Time: 06:21:31 PM PST US From: Jaybannist@cs.com Subject: Re: Zenith-List: Re: Engine Larry, FYI, William Wynne no longer builds engines for sale. I think that Kevin Fahy (of the former WW "Hanger Gang") now offers that function. The only way I know to contact him is through Gus Warren (flywithgus.com). Jay in Dallas Larry H wrote: >Hans, > > You might want to consider doing a WW Corvair Conversion. The cost will be about 1/3 that of a new Rotax or Jabiru (if not more) and it will be an engine you can maintain yourself. William Wynne is out of Orange Park Florida and has been helping quite a huge movement of builders to convert the Corvair engine into a 100 HP air cooled, 6 cylinder engine. He does offer to build an engine up for you if you don't want to do it yourself. Here is his website: www.flycorvair.com > > Larry H > Following WW Corvair Conversion Manual > Zodiac CH 601 XL > >hansriet wrote: > >I have also a question regarding this: > >What type of O-200 to use? Are there any edition that we should walk away from? I always imagined going with a Rotax or Jabiru, but that's just going to be too expensive. > >Hans > > >Read this topic online here: > >http://forums.matronics.com/viewtopic.php?p=168099#168099 > > > >--------------------------------- >Never miss a thing. Make Yahoo your homepage. > ________________________________ Message 40 ____________________________________ Time: 07:05:54 PM PST US Subject: Zenith-List: Re: Needley engine From: "kmccune" Thanks for the info, but I am build the 701 for its unique ability's, otherwise I'd have built a Rans S7. I did initially look at it, but it does not develop enough thrust, I really like the carb. And the redrive VWs run pretty high engine RPMs to get the power. Great Planes had a water cooled engine, but it seems to have disappeared. There really is a huge hole in the market for this engine. [/i] -------- Kevin N701DZ Reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168170#168170 ________________________________ Message 41 ____________________________________ Time: 09:45:42 PM PST US Subject: Zenith-List: Re: Gearbox recall From: "Roger Lee" Hi JG, Just so you understand. 5800rpm is the max rpm for that engine anytime, period, regardless of prop pitch. Everything is then figured from there. 5500 WOT is the max continuous rpm anytime, period, regardless of prop pitch. These numbers do not depend on the prop pitch, but are absolute per the engine specs. So no matter what the prop pitch is set to 5800 is the absolute max and 5500 can be run all day if you wanted to. If you set the prop pitch to achieve 5500rpm WOT (wide open throttle) when flying straight and level then you are good to go. With ground adjustable or fixed pitched props we try to achieve a balance of our flight characteristics and engine performance verses wear and tear. Balance is the key here. If you have your prop set to achieve 5800 rpm you will have killer climb, but suffer in the fuel economy and cruise speed. At the 5800 prop pitch setting you will have to fly higher rpms and more throttle (fuel) to keep the speed you want because the prop pitch is set too flat. If you fly high altitude let's say over 7k' all the time then you will be able to develop a little more rpm and hp at high altitudes with a prop pitch set for 5800 verses 5500 WOT. If you have your prop set for 5500 WOT then you will still climb well, but you can now cruise at 5000rpm at a faster speed and at a reduced throttle setting which equates into better fuel economy. You can go the other way and have the prop pitch set for 5100 WOT and have poor performance balance and you are lugging this engine, it is over propped. It was set to run and is happier at 4800-5200 rpm cruise at with a WOT of 5500. The manual gives the 912's low and high specs, but does a poor job of where it should be set to be happy for its life span. They do teach these things in the Rotax classes. While we are on the subject of rpm settings the idle setting for the 912uls should be at 1800 give or take a few rpm. The 912 80hp only has a 9:1 compression while our 912ULS engines are 10.5:1 and this higher rpm cause real wear and tear at low idle rpms. It is better to also warm your engine up at 2000-2400 rpm. It runs smoother there and while it warms up has less vibration and gearbox wear. At this idle rpm setting you are not loading the engine enough just sitting there to be of concern. Right out of the Rotax classes. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168194#168194 ________________________________ Message 42 ____________________________________ Time: 09:47:09 PM PST US Subject: Zenith-List: Re: Gearbox recall From: "Roger Lee" Don't beat your gearbox up. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=168195#168195 Attachments: http://forums.matronics.com//files/n142st_020_6221_496.jpg ________________________________ Message 43 ____________________________________ Time: 10:59:35 PM PST US From: xl Subject: Re: Zenith-List: Re: Overtrimmed airleron I've posted a glimpse at http://www.cleanh2o.com/633z/aileron_hinge_patch.jpg A repolish is in the queue for the Arlington, WA flyin. Joe E @ BFI CH601XL, 505 hours http://www.cleanh2o.com/633z/ On Thu, 7 Feb 2008, ashontz wrote: > Thanks, I appreciate it. I'd like to see you're handywork up close. > > xl(at)prosody.org wrote: >> I made the same mistake on both ailerons. >> I didn't see the mistake until I fit ailerons to the wings. >> I took a piece of scrap wide enough to get a rivet in on >> each side. No one has noticed the patch until I point it out. >> (or they've been polite) >> .......snip >> It's the only picture that I can find that shows the patch. >> I see if my camera still works, if it does I'll get a closeup. >>>>> do not archive ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/zenith-list Browse Digests http://www.matronics.com/digest/zenith-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.