---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Sat 04/09/05: 20 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:49 AM - Re: Basic question from prospective 701 builder (jnbolding1) 2. 05:49 AM - Re: Covair builders (Clyde Barcus) 3. 06:41 AM - Re: 701 front wing struts (Larry Martin) 4. 06:44 AM - Zenair CH701 For Sale (Mike Banyai) 5. 07:35 AM - wanted: rotax 912 exhaust feedback... (j. davis) 6. 09:12 AM - Rotax 912 idle speed (Richard McLachlan) 7. 09:41 AM - Re: wanted: rotax 912 exhaust feedback... (Mike Fothergill) 8. 11:04 AM - Re: Covair builders () 9. 11:48 AM - Re: Covair builders (Clyde Barcus) 10. 12:20 PM - 601 XL for sale on ebay (Joemotis@aol.com) 11. 12:43 PM - Basic 701 question from a prospective builder (David Karlsberg) 12. 02:40 PM - Fuselage construction sequence - 701 (Robert Schoenberger) 13. 02:53 PM - just a few questions from a beginner... (Brad Cohen) 14. 03:07 PM - Re: just a few questions from a beginner... (Crvsecretary@aol.com) 15. 06:08 PM - Re: Fuselage construction sequence - 701 (RURUNY@aol.com) 16. 06:15 PM - Re: Rotax 912 idle speed (Dave Austin) 17. 06:34 PM - Re: wanted: rotax 912 exhaust feedback... (Pwalsh4539@aol.com) 18. 06:53 PM - corvair (Joe Wooten) 19. 08:14 PM - Slotted flap Control Plate () 20. 08:39 PM - See you at SnF (Mark Stauffer) ________________________________ Message 1 _____________________________________ Time: 03:49:12 AM PST US From: "jnbolding1" Subject: Re: Zenith-List: Basic question from prospective 701 builder --> Zenith-List message posted by: "jnbolding1" I also know >there are two different types of floats available (the ones with 4 wheels or >3) So please let me know if you guys >think the 701 fits the bill. > > >Thanks, >David David I have flown the Skyshops demo with the 4 wheel floats and due to the lack of control friction in the rudder it flew a LOT nicer than the Zenith demo on wheels. One downside however is that taxi operations unto a beach or soft shore is sometimes impossible with the 4 wheeled floats. (from Grant Rappe, Skyshops demo pilot) It's also 15# heavier than the nosewheel model. LOW&SLOW John Sent via the EV1 webmail system at mail.ev1.net ________________________________ Message 2 _____________________________________ Time: 05:49:29 AM PST US From: "Clyde Barcus" Subject: Re: Zenith-List: Covair builders --> Zenith-List message posted by: "Clyde Barcus" The preferred engine is the 1965 through 1969 110hp with RD, RF, RH, RX or RK at the end of the serial numbers stamped on the engine case near the oil filler tube. Regards: Clyde Barcus 601XL ----- Original Message ----- From: "Joe Wooten" Subject: Zenith-List: Covair builders > --> Zenith-List message posted by: "Joe Wooten" > > Hi all, I want to know if the corvair builders could tell me if any model > corvair engine will work ,to start the rebuild? I haven't bought the > manual yet ,but I am going to ,I need to find a car locally first but > wanted to know if I should look for a particular model or if all will do > o.k. Thanks Joe Wooten > > > ________________________________ Message 3 _____________________________________ Time: 06:41:22 AM PST US From: "Larry Martin" Subject: Re: Zenith-List: 701 front wing struts --> Zenith-List message posted by: "Larry Martin" Of all of the aircraft related companies I have dealt with, (a bunch), I have to admit Zenith is one of the best, if not the best, customer oriented companies around. They do what they say, when they say and how they say. I'm not drinking either, Larry, N1345L www.angelfire.com/un/ch701 ----- Original Message ----- From: "Ron Lee" Subject: Zenith-List: 701 front wing struts > --> Zenith-List message posted by: "Ron Lee" > > Zenith aircraft is sending me two new front wing struts. Is this a great company or what? > Ron Lee > Tucson, AZ > > > -- > Internal Virus Database is out-of-date. > > -- Internal Virus Database is out-of-date. ________________________________ Message 4 _____________________________________ Time: 06:44:21 AM PST US From: "Mike Banyai" Subject: Zenith-List: Zenair CH701 For Sale --> Zenith-List message posted by: "Mike Banyai" Compleated in 1990, has been flying in the past, not flying now, includes all parts to rebuild firewall and rebuilt Rotax 532. First 14K dollars Located Pellston, Michigan, contact Mike Banyai, mbany@freeway.net ________________________________ Message 5 _____________________________________ Time: 07:35:44 AM PST US From: "j. davis" Subject: Zenith-List: wanted: rotax 912 exhaust feedback... --> Zenith-List message posted by: "j. davis" Hi... I'd like to hear from users of what George Pinneo describes as "the original steel squashed-cylinder dual-mufflers" that were supplied by Zenith in the mid 90's. (You can see this system at http://www.cleco.ca/ch701/construction_gallery/new_engine/index.html if George's description doesn't work for you...) I've been strongly advised to scrap this system and not use it under any circumstances, based on several failures seen by the advice-giver. George, on the other hand, seems to have been happy with his (at least until the year 2000, the date of his archived post to this list). So, are there other 912s using this system with good or bad opinions? Thanks. --- Regards, J. flying: Zenair STOL CH701/912 C-IGGY building: Sonex #325, Jabiru 3300/6 cyl/120hp, 60% done | J. Davis, M.Sc. (comp_sci) | *NIX guru, consultant | | Research Programmer, SysMgr | email: jd at uwo dot ca | | Lawson Health Research Inst | voice: 519 646 6100 x64166 | | London, Ontario | fax: 519 646 6399 | | Canada | www.cleco.ca | ________________________________ Message 6 _____________________________________ Time: 09:12:52 AM PST US From: "Richard McLachlan" Subject: Zenith-List: Rotax 912 idle speed --> Zenith-List message posted by: "Richard McLachlan" What idle speed do you manage to get down to on the Rotax 912? Obviously this needs to be as low as possible so you don't extend the landing roll more than necessary. Some recent measurements here in the UK have indicated that having the idle too high by just 30% above normal can increase the landing distance by an amazing 60%. We find that ours on a 601HDS just will not tickover below 1000 RPM or so without the engine jumping around so much that you can't keep the screwdriver in the adjusting slot. It does not get smooth until 1200-1300 RPM and we use 1700 during warm up. No amount of carb balancing will let us get below this figure. Having gone through the broken mounting brackets saga last year we are paranoid about engine stability so tend to keep the revs high. What speeds do others manage? Richard McLachlan CH601/R22 landing site details at www.rodsley.net ________________________________ Message 7 _____________________________________ Time: 09:41:12 AM PST US From: Mike Fothergill Subject: Re: Zenith-List: wanted: rotax 912 exhaust feedback... --> Zenith-List message posted by: Mike Fothergill Hi; Mine gave up in the first 40 hours. Mike UHS Spinners j. davis wrote: > --> Zenith-List message posted by: "j. davis" > > Hi... > > I'd like to hear from users of what George Pinneo describes as > "the original steel squashed-cylinder dual-mufflers" that were supplied > by Zenith in the mid 90's. > ________________________________ Message 8 _____________________________________ Time: 11:04:57 AM PST US From: Subject: Re: Zenith-List: Covair builders Seal-Send-Time: Sat, 9 Apr 2005 12:59:09 -0500 --> Zenith-List message posted by: No, nein, nicht, ie, non, and negatory-goodbuddy, not all Corvair engines are appropriate for conversion. I would strongly recommend you get Wynne's book before you go engine hunting. He is very specific on what to get, and even gives part numbers to look for. They're out there, and relatively easy to get, so don't jump at the first one you come across until you've checked the part numbers. Paul Rodriguez 601XL/Corvair ----- Original Message ----- From: Joe Wooten To: zenith-list@matronics.com Sent: Friday, April 08, 2005 7:42 PM Subject: Zenith-List: Covair builders --> Zenith-List message posted by: "Joe Wooten" > Hi all, I want to know if the corvair builders could tell me if any model corvair engine will work ,to start the rebuild? I haven't bought the manual yet ,but I am going to ,I need to find a car locally first but wanted to know if I should look for a particular model or if all will do o.k. Thanks Joe Wooten ________________________________ Message 9 _____________________________________ Time: 11:48:04 AM PST US From: "Clyde Barcus" Subject: Re: Zenith-List: Covair builders --> Zenith-List message posted by: "Clyde Barcus" The letter designation, years, and HP I gave in previous email was from Williams book, I have his conversion manual, videos, etc. I recommend all of his books and videos and I intend to buy several components from him next week at Sun-N-Fun. Regards: Clyde Barcus 601XL builder ----- Original Message ----- From: Subject: Re: Zenith-List: Covair builders > --> Zenith-List message posted by: > > No, nein, nicht, ie, non, and negatory-goodbuddy, not all Corvair engines > are appropriate for conversion. I would strongly recommend you get Wynne's > book before you go engine hunting. He is very specific on what to get, and > even gives part numbers to look for. They're out there, and relatively > easy to get, so don't jump at the first one you come across until you've > checked the part numbers. > > Paul Rodriguez > 601XL/Corvair > ----- Original Message ----- > From: Joe Wooten > To: zenith-list@matronics.com > Sent: Friday, April 08, 2005 7:42 PM > Subject: Zenith-List: Covair builders > > > --> Zenith-List message posted by: "Joe Wooten" > > > > Hi all, I want to know if the corvair builders could tell me if any > model corvair engine will work ,to start the rebuild? I haven't bought > the manual yet ,but I am going to ,I need to find a car locally first but > wanted to know if I should look for a particular model or if all will do > o.k. Thanks Joe Wooten > > > ________________________________ Message 10 ____________________________________ Time: 12:20:28 PM PST US From: Joemotis@aol.com Subject: Zenith-List: 601 XL for sale on ebay --> Zenith-List message posted by: Joemotis@aol.com As a bit of explanation , when I built the ad I thoght the pic was of the ZAC factory demo. Whoops! I tried to change the pic, but ebay would not let me .I added a disclaimer this morning. Sorry to any and all. Thanks Joe Do not archive ________________________________ Message 11 ____________________________________ Time: 12:43:55 PM PST US From: David Karlsberg (by way of Matt Dralle ) Subject: Zenith-List: Basic 701 question from a prospective builder --> Zenith-List message posted by: David Karlsberg (by way of Matt Dralle ) Hi I am a prospective 701 builder. I am looking for some basic performance figures of a 701 with the rotax 100 hp engine and floats. I am most interested in speed, range, service ceiling and useful load. I also know there are two different types of floats available (the ones with 4 wheels or 3) I have a house at Lake Tahoe where this plane would be based. It is at 6000'. It is also surrounded by 10000 foot peaks. Ideally I would like to use the plane to commute the 300 miles to my other house. Density altitude can be a major problem because the temperature in the summer can get hotter than 80 degrees. Please let me know if you guys think the 701 fits the bill. Thanks, David ________________________________ Message 12 ____________________________________ Time: 02:40:54 PM PST US From: "Robert Schoenberger" Subject: Zenith-List: Fuselage construction sequence - 701 --> Zenith-List message posted by: "Robert Schoenberger" List . . . just finished the second wing on my 701 - what a good feeling to be able to move on to the fuselage. I haven't had a chance to review the plans and photo assembly manual for the fus yet, but a couple of general questions. I would like to continue building in my basement workshop as I did for the wing and tail. I can get long flat pieces such as the wing out of the basement, but the width and depth of the fus cross section are too great to get it out of the door at the top of the stairs as an assembled structure. 1. Are there any problems with constructing the fus in the basement using clecos and then disassembling it and moving it to a worktable in the garage for final riveting? 2. Perhaps a dumb question, but should the worktable be significantly lower in order to work comfortably on the fus? Thanks for any advice on the above or other tips to make the construction process go easier. Robert Schoenberger 701 55% ________________________________ Message 13 ____________________________________ Time: 02:53:13 PM PST US From: "Brad Cohen" Subject: Zenith-List: just a few questions from a beginner... Seal-Send-Time: Sat, 9 Apr 2005 17:49:56 -0400 --> Zenith-List message posted by: "Brad Cohen" I have just started my 601xl (6-5803) and have a few nagging quesitons that hopefully you all can clear up for me; 1. While drilling the rudder skins I INITIALLY did not use a rubber washer (this has since been corrected) I marred about 9 of the holes. only two were bad enough to be noticable on the inside of the skin...I called the factory and they said that it is not a structural issue and if I want I can fill in with body filler for cosmetic appearance. any thoughts? 2. While aligning and drilling the rudder leading edge skin, the bottom rivet hole on both sides violates the 10mm rule (each only has an edge distance of about 6mm) where it attaches the the main spar. again I called the factory and they said as long as it was not the entire line of rivets, that it should be o.k., but being the anal-retentive kinda guy that I am I am still concerned about structural integrity, cracking, etc. would I be better off snipping off the corner at a 45 degree angle and adding a new rivet that is 10mm from the edge? 3. Due to cleco-ing and re-clecoing to check the fit of the trailing edge skin, the last holes on RR #1 and #2 are now a little oversized for an A4 rivet. The rivet still fits but obviously it is loose. would there be any benefit to widening these holes and replacing the A4's with A5's? 4.(last one, promise) I read the thread regarding the spacing of the stabilizer front spar attachement being changed from 219mm to 233mm. I am concerned because I JUST RECEIVED updated plans from ZAC dated 12/04 and the spacing is still listed on page 6-t-2 as 219mm. Thanks for your input and sorry for being so long-winded Brad Cohen 601XL 6-5803 ________________________________ Message 14 ____________________________________ Time: 03:07:49 PM PST US From: Crvsecretary@aol.com Subject: Re: Zenith-List: just a few questions from a beginner... --> Zenith-List message posted by: Crvsecretary@aol.com Hello Brad: Glad to have you aboard. Let's take a look at your questions: 1. No problem. 2. Again...one rivet/side? Shouldn't be an issue. 3. Hmmm..THESE should be strengthened/replaced with A5 rivets. 4. Plans dated 12/4 are not current to those issued 3/05. Go to the updates page on the website and take a look to the most current updates. Is your spar pre-drilled? Double-check and see what you have before proceeding. You're not long-winded - you're thorough. As you gain experience you'll be GIVING advise very soon !! As a suggestion: please include 'do not archive' on questions/posts you feel should not go into list archives. Regards, Tracy Smith Naugatuck, CT 601xl tail 100% N458XL (reserved) do not archive In a message dated 4/9/2005 5:53:56 PM Eastern Standard Time, bradfnp@msn.com writes: --> Zenith-List message posted by: "Brad Cohen" I have just started my 601xl (6-5803) and have a few nagging quesitons that hopefully you all can clear up for me; 1. While drilling the rudder skins I INITIALLY did not use a rubber washer (this has since been corrected) I marred about 9 of the holes. only two were bad enough to be noticable on the inside of the skin...I called the factory and they said that it is not a structural issue and if I want I can fill in with body filler for cosmetic appearance. any thoughts? 2. While aligning and drilling the rudder leading edge skin, the bottom rivet hole on both sides violates the 10mm rule (each only has an edge distance of about 6mm) where it attaches the the main spar. again I called the factory and they said as long as it was not the entire line of rivets, that it should be o.k., but being the anal-retentive kinda guy that I am I am still concerned about structural integrity, cracking, etc. would I be better off snipping off the corner at a 45 degree angle and adding a new rivet that is 10mm from the edge? 3. Due to cleco-ing and re-clecoing to check the fit of the trailing edge skin, the last holes on RR #1 and #2 are now a little oversized for an A4 rivet. The rivet still fits but obviously it is loose. would there be any benefit to widening these holes and replacing the A4's with A5's? 4.(last one, promise) I read the thread regarding the spacing of the stabilizer front spar attachement being changed from 219mm to 233mm. I am concerned because I JUST RECEIVED updated plans from ZAC dated 12/04 and the spacing is still listed on page 6-t-2 as 219mm. Thanks for your input and sorry for being so long-winded ________________________________ Message 15 ____________________________________ Time: 06:08:01 PM PST US From: RURUNY@aol.com Subject: Zenith-List: Re: Fuselage construction sequence - 701 --> Zenith-List message posted by: RURUNY@aol.com Rob, I did lots of my fuselage construction in a basement where it would not get out fully assembled. 1) Rear fuselage first: drilled and clecoed all 4 sides together, this included the builders option x braces for oilcanning. Also look ahead at the rudder manual as I did all the cuts and drills for fairleads where rudder cables exit fuselage. I squared fuselage also and installed the rudder hinges and fit the rudder to the fuselage. This is where you position the exact location of the rudder hinges. I got this far all using clecoes. At this point I built a short narrow bench slightly wider than rear fuse to finish its assembly in the garage upstairs. 2)The fwd fuselage area floor, tunnel, gear channel, sides, seat belt attach, rudder pedals, longerons are all fitted cut to size, drilled and clecoed in basement on your bench. 3) firewall assembly, nose gear strut and bearings are all done in basement. 4) Drill and cleco to firewall to fuselage floor, if you have engine mount clamping it to assembly helps. Engine mount will need to be trimmed at bottom and side attach points. 5) I built another short workbench about the length and width of the floor with some space to lay tools on for the garage and then riveted floor together. Then joined rear fuse and floor. While assembling the fuse look ahead at the upcomming manuals, especially the controls and final assembly sections. Lots of stuff that would be a pain later is easy while it still comes apart. Brian ________________________________ Message 16 ____________________________________ Time: 06:15:34 PM PST US From: "Dave Austin" Subject: Re: Zenith-List: Rotax 912 idle speed --> Zenith-List message posted by: "Dave Austin" Richard, ROTAX have issued a service bulletin that directs that idle revs should not be below 1200 rpm as damage can occur to the reduction drive and crank case at lower revs. Suggest you check those SBs to get the full story. Dave Austin 601HDS - 912 ________________________________ Message 17 ____________________________________ Time: 06:34:57 PM PST US From: Pwalsh4539@aol.com Subject: Re: Zenith-List: wanted: rotax 912 exhaust feedback... --> Zenith-List message posted by: Pwalsh4539@aol.com Well, I recently sold my 601 w/912, but I can tell you I noticed a substantial increase in power when I changed to the new single muffler system. It is much better. I had read and heard from several different sources, which I cannot recall, that the duel system created excessive back pressure. Patrick Walsh 601HD, which I already miss, but it has a good home. ________________________________ Message 18 ____________________________________ Time: 06:53:34 PM PST US From: "Joe Wooten" Subject: Zenith-List: corvair --> Zenith-List message posted by: "Joe Wooten" Thanks to all for the info, i will get the book and study first, i saw a 140 h.p on e bay I think 65 model ,I just thought would be ok ,it was fairly close to my house but might not be right, Thanks Joe Wooten, ________________________________ Message 19 ____________________________________ Time: 08:14:44 PM PST US From: Subject: Zenith-List: Slotted flap Control Plate --> Zenith-List message posted by: Just finished up the flaps. I found that the latest revision to the drawing moves the control plate 90 degrees and puts in a slot rather than the hole that used to be there. Of course I realized this after I had mounted it the original way. It worked fine though. (Pics on the website.) LESSON LEARNED> Check the revision before cutting! I think this will make the mounting and alignment easier when I mate the flap to the flap torque tube. Cheers Matt Archer www.zodiacxl.com ________________________________ Message 20 ____________________________________ Time: 08:39:26 PM PST US From: "Mark Stauffer" Subject: Zenith-List: See you at SnF --> Zenith-List message posted by: "Mark Stauffer" Hope to see all of you there. I'm flying down tomorrow in the Cherokee, looks like the best day from the Eastern seaboard. Do not archive Mark 601XL Odenton, MD Fuselage finished one of these days! Buying instruments this week?? Engine??