Pietenpol-List Digest Archive

Sat 05/08/10


Total Messages Posted: 26



Today's Message Index:
----------------------
 
     1. 05:59 AM - Gardiner's Corvair issue, or how not to cool the Corvair in your 	Pietenpol (Ryan Mueller)
     2. 06:35 AM - Re: Gardiner's Corvair issue, or how not to cool the Corvair in your Pietenpol (airlion)
     3. 07:00 AM - rib test, wood failure (schuerrman)
     4. 07:36 AM - Re: rib test, wood failure (skellytown flyer)
     5. 07:44 AM - Re: Gardiner's Corvair issue, or how not to cool the Corvair in your Pietenpol (Jeff Boatright)
     6. 08:21 AM - Re: rib test, wood failure (schuerrman)
     7. 08:34 AM - Re: rib test, wood failure (Ryan Mueller)
     8. 09:52 AM - Mogas and carb ice - Stromberg carbs (kmordecai001@comcast.net)
     9. 10:53 AM - Re: Mogas and carb ice - Stromberg carbs (Ryan Mueller)
    10. 10:59 AM - Re: A-65 still for sale (Ryan Mueller)
    11. 11:33 AM - Re: Pietenpol-List Digest: 15 Msgs - 05/07/10 (Stu Brown)
    12. 04:00 PM - Re: rib test, wood failure (helspersew@aol.com)
    13. 04:38 PM - phone numbers (Douwe Blumberg)
    14. 04:47 PM - Re: phone numbers (Ryan Mueller)
    15. 05:40 PM - Weight. (skellytown flyer)
    16. 05:53 PM - Re: Weight. (Thomas Bernie)
    17. 05:57 PM - Re: Weight. (Ryan Mueller)
    18. 06:03 PM - Re: Weight. (skellytown flyer)
    19. 06:55 PM - Re: Re: Weight. (Thomas Bernie)
    20. 07:03 PM - Re: Re: Weight. (Ryan Mueller)
    21. 07:03 PM - Re: Weight. (skellytown flyer)
    22. 07:06 PM - Re: Gardiner's Corvair issue, or how not to cool the 	Corvair in your Pietenpol (Rick Holland)
    23. 07:22 PM - Re: Mogas and carb ice - Stromberg carbs (Rick Holland)
    24. 07:43 PM - Re: Re: Weight. (Thomas Bernie)
    25. 08:06 PM - Re: Weight. (skellytown flyer)
    26. 08:28 PM - Re: Re: Weight. (Ben Charvet)
 
 
 


Message 1


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    Time: 05:59:47 AM PST US
    Subject: Gardiner's Corvair issue, or how not to cool the Corvair
    in your Pietenpol
    From: Ryan Mueller <rmueller23@gmail.com>
    I'm sure many recall the posts Gardiner made to the list recently about the unfortunate problems he encountered with the Corvair engine he has installed in his Pietenpol. There was the suggestion on his part that it may have been due to subpar workmanship during assembly of the engine, which was assembled by one of William Wynne's former hangar crew. Gardiner took the engine down to William Wynne, and a partial teardown and analysis of the engine revealed that it had been suffering from a combination of sketchy timing and inadequate cooling, leading to severe detonation. The timing issue stemmed from having an equally sketchy individual (not related to William or one of his associates) make modifications to the distributor, and the cooling issue stemmed from a number of flaws in Gardiner's particular cooling configuration. William has put a detailed post on his site explaining exactly what happened, and how to avoid these issues: http://flycorvair.com/pietengineissue.html I highly recommend giving it a read if you are at all interested in using a Corvair, or if you are already committed to using one. Plenty of good information. Gardiner, We wish you the best with getting the 'Vair back together and back on your Piet. We hope you can get all the kinks sorted out and are able to fly her to Brodhead this year! We'll be there with our new Piet, and we look forward to seeing yours. Have a nice weekend, Ryan


    Message 2


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    Time: 06:35:20 AM PST US
    From: airlion <airlion@bellsouth.net>
    Subject: Re: Gardiner's Corvair issue, or how not to cool the Corvair
    in your Pietenpol William, I thoroughly enjoyed your discussion about my mistakes and I am not hurt in the least by bringing them to light. I have learned a lot in the last few days and I thank you. Gardiner. ________________________________ From: Ryan Mueller <rmueller23@gmail.com> Sent: Sat, May 8, 2010 8:58:03 AM Subject: Pietenpol-List: Gardiner's Corvair issue, or how not to cool the Corvair in your Pietenpol I'm sure many recall the posts Gardiner made to the list recently about the unfortunate problems he encountered with the Corvair engine he has installed in his Pietenpol. There was the suggestion on his part that it may have been due to subpar workmanship during assembly of the engine, which was assembled by one of William Wynne's former hangar crew. Gardiner took the engine down to William Wynne, and a partial teardown and analysis of the engine revealed that it had been suffering from a combination of sketchy timing and inadequate cooling, leading to severe detonation. The timing issue stemmed from having an equally sketchy individual (not related to William or one of his associates) make modifications to the distributor, and the cooling issue stemmed from a number of flaws in Gardiner's particular cooling configuration. William has put a detailed post on his site explaining exactly what happened, and how to avoid these issues: http://flycorvair.com/pietengineissue.html I highly recommend giving it a read if you are at all interested in using a Corvair, or if you are already committed to using one. Plenty of good information. Gardiner, We wish you the best with getting the 'Vair back together and back on your Piet. We hope you can get all the kinks sorted out and are able to fly her to Brodhead this year! We'll be there with our new Piet, and we look forward to seeing yours. Have a nice weekend, Ryan


    Message 3


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    Time: 07:00:07 AM PST US
    Subject: rib test, wood failure
    From: "schuerrman" <sdschuerr@live.com>
    I have two completed ribs and I was looking through the archives to find ways to test them. Could anyone point me in the right direction? I'm sure I couldn't build a rib worse than these two. I forgot to glue the backs of some gussets on one, and I started pulling one out of the jig too soon, so I'm confident that these two will be the worst of my lot. Are there any numbers on what the rib should be able to take? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297102#297102


    Message 4


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    Time: 07:36:12 AM PST US
    Subject: Re: rib test, wood failure
    From: "skellytown flyer" <skellflyer1@yahoo.com>
    I'm sure you'll get some more technical answers later. but if you can tug at the gussets without them coming loose and they held their shape well after coming out.and you used good clean wood without knots or deformities I'd guess they are pretty good.( of course unless you're wanting to test them to destruction you have to use some judgment on how hard to pull on the gussets.there was a post a while back about a wing that had been flying for some time and the gussets peeling off when they checked them so it would be good to do that before constructing a wing with them I'd guess. I have in the past made a master rib for a pattern and sanded the others as needed on a belt/disc sander till they were a very close match.and when I used plywood for ribs on another project I used a ball bearing pilot router bit to trim them all to the master rib after clamping them to it. lots of ways to check them. Raymond Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297103#297103


    Message 5


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    Time: 07:44:03 AM PST US
    From: Jeff Boatright <jboatri@emory.edu>
    Subject: Re: Gardiner's Corvair issue, or how not to cool the
    Corvair in your Pietenpol Gardiner, you're a true gentleman and a seeker of truth. >William, I thoroughly enjoyed your discussion about my mistakes and >I am not hurt in the least by bringing them to light. > >I have learned a lot in the last few days and I thank you. Gardiner. -- Jeff Boatright "Now let's think about this..."


    Message 6


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    Time: 08:21:29 AM PST US
    Subject: Re: rib test, wood failure
    From: "schuerrman" <sdschuerr@live.com>
    The third just came out of the jig beautifully. They look great, and they're very solid. I'm going to mock up two on some two foot spars, tack some leading and trailing edge on and pile some weight on from a few different angles. I just bought another bingelis book, it will be here shortly. I do have a question about grain, though. What is the preferred direction of the grain in relation to stress? Should rings be horizontal, vertical, or it doesn't matter? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297105#297105


    Message 7


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    Time: 08:34:15 AM PST US
    From: Ryan Mueller <rmueller23@gmail.com>
    Subject: Re: rib test, wood failure
    There are some posts in the archives that address this. In short, you are going to need about 500-1000 lbs of tractor weights, a bathtub, a hammer, a kitchen stove, and some sort of flammable liquid... Ryan Do not archive Sent from my iPhone On May 8, 2010, at 8:59 AM, "schuerrman" <sdschuerr@live.com> wrote: > <sdschuerr@live.com> > > I have two completed ribs and I was looking through the archives to > find ways to test them. Could anyone point me in the right direction?


    Message 8


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    Time: 09:52:52 AM PST US
    From: kmordecai001@comcast.net
    Subject: Mogas and carb ice - Stromberg carbs
    =C2-Fellow Pieters, Tim Willis wrote:=C2- =C2-=C2-=C2-=C2- =C2-=C2-=C2-"We know that ethanol is more volatile than gasoline, and thus we have more evaporative cooling at the carbuerator. =C2-The combo of more cooling and more water can cause more carb icing. =C2-So, as we have throttled back we need more carb heat when using mogas.=C2-=C2-" Down here in the FL panhandle on a=C2-typically damp morning in near idea l icing conditions,=C2-my Stromberg=C2-iced up at full throttle=C2-du ring climbout.=C2-=C2-Application of carb heat cleared it up quickly, s o I circled the field and continued the climb to a safe altitude and turned off carb heat. After about 30-45 seconds the loss of power and roughness c ame back, and was cleared up again=C2-by the application of carb heat. Th is was in 2005 or 2006 when I=C2-was running mogas from the local BP that supplied most of the local boaters and=C2-supposedly had no ethanol.=C2 - I made up a quick home-made=C2-ethanol tester per the EAA instruction s, and=C2-found that this fuel not only had ethanol in it, but that it wa s saturated with water as well. Since then I've run nothing but 100LL in the A-75.=C2- It makes a little more power,=C2-doesn't threaten to kill me with carb=C2-ice or leave my hands stinking, (in fact, it smells good), and won't go bad=C2-in a shor t time like today's crappy mogas.=C2- It does cost more and I have to dri ve about 30 miles to fill my 5 gallon cans, but=C2-for a year's worth of flying it's only about $40-50 more total cost.=C2- Cheap Insurance. Of course, we don't all have a local unattended source of avgas, so please do make an ethanol tester and do your homework if you must run mogas. My 2 cents worth, Dave Mordecai 41 Monocoupe Circle Panacea, FL NX520SF=C2-=C2-=C2- =C2-=C2-


    Message 9


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    Time: 10:53:07 AM PST US
    Subject: Re: Mogas and carb ice - Stromberg carbs
    From: Ryan Mueller <rmueller23@gmail.com>
    Good point! Mogas is foul smelling swill compared to the sweet, sweet nectar that is 100LL. Airplanes that consistently have their tanks full of mogas just don't smell right....I want my airplane to smell like an airplane darn it, not like the old jalopy next door! :) Ryan do not archive On Sat, May 8, 2010 at 11:24 AM, <kmordecai001@comcast.net> wrote: > <snip> > > Since then I've run nothing but 100LL in the A-75. It makes a little more > power, doesn't threaten to kill me with carb ice or leave my hands stinking, > (*in fact, it smells good*), and won't go bad in a short time like today's > crappy mogas. It does cost more and I have to drive about 30 miles to fill > my 5 gallon cans, but for a year's worth of flying it's only about $40-50 > more total cost. Cheap Insurance. >


    Message 10


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    Time: 10:59:53 AM PST US
    Subject: Re: A-65 still for sale
    From: Ryan Mueller <rmueller23@gmail.com>
    Just wanted to make it be known that the engine has been sold, and is no longer available. Thanks! Ryan do not archive On Thu, Apr 29, 2010 at 1:27 PM, Ryan Mueller <rmueller23@gmail.com> wrote: > We still have an A-65 available for sale. Low time, complete logs, more > info here: > > http://www.barnstormers.com/ad_detail.php?ID=420563 > > and please email me for details. We are now asking $2,000, which is an > excellent deal. Have a good day, > > Ryan > > * > > * > >


    Message 11


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    Time: 11:33:16 AM PST US
    From: Stu Brown <stu_brown@verizon.net>
    Subject: Re: Pietenpol-List Digest: 15 Msgs - 05/07/10
    See the attachment for alcohol free suppliers. Stu Brown http://pure-gas.org/index.jsp?stateprov=NY Pietenpol-List Digest Server wrote: > * > > ================================================= > Online Versions of Today's List Digest Archive > ================================================= > > Today's complete Pietenpol-List Digest can also be found in either of the > two Web Links listed below. The .html file includes the Digest formatted > in HTML for viewing with a web browser and features Hyperlinked Indexes > and Message Navigation. The .txt file includes the plain ASCII version > of the Pietenpol-List Digest and can be viewed with a generic text editor > such as Notepad or with a web browser. > > HTML Version: > > http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 10-05-07&Archive=Pietenpol > > Text Version: > > http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 10-05-07&Archive=Pietenpol > > > =============================================== > EMail Version of Today's List Digest Archive > =============================================== > > > ---------------------------------------------------------- > Pietenpol-List Digest Archive > --- > Total Messages Posted Fri 05/07/10: 15 > ---------------------------------------------------------- > > > Today's Message Index: > ---------------------- > > 1. 06:03 AM - no flying in Ohio Saturday......... (Cuy, Michael D. (GRC-RXD0)[ASRC Aerospace Corporation]) > 2. 07:00 AM - Re: Milestone- Spray painting complete! (Dan Yocum) > 3. 07:16 AM - Re: no flying in Ohio Saturday......... (Jeff Boatright) > 4. 08:04 AM - Re: no flying in Ohio Saturday......... (Dan Yocum) > 5. 08:44 AM - Re: no flying in Ohio Saturday......... (gcardinal@comcast.net) > 6. 11:05 AM - Re: no flying in Ohio Saturday......... (Chris) > 7. 11:48 AM - Re: no flying in Ohio Saturday......... (Cuy, Michael D. (GRC-RXD0)[ASRC Aerospace Corporation]) > 8. 12:54 PM - Re: no flying in Ohio Saturday......... (Jack Phillips) > 9. 01:18 PM - Re: no flying in Ohio Saturday......... (Wayne Bressler) > 10. 01:33 PM - Re: Ethanol in Mogas-- more coming (Jeff Boatright) > 11. 06:04 PM - What must be done to invert a Ford Model A engine? (Mild Bill) > 12. 07:02 PM - Re: What must be done to invert a Ford Model A engine? (Ryan Mueller) > 13. 07:22 PM - Re: What must be done to invert a Ford Model A engine? (Pieti Lowell) > 14. 09:03 PM - Re: Ethanol in Mogas-- more coming (coxwelljon) > 15. 09:12 PM - Re: Question regarding control surface travel (coxwelljon) > > > ________________________________ Message 1 _____________________________________ > > > Time: 06:03:56 AM PST US > From: "Cuy, Michael D. (GRC-RXD0)[ASRC Aerospace Corporation]"<michael.d.cuy@nasa.gov> > Subject: Pietenpol-List: no flying in Ohio Saturday......... > > for me, anyway. > > > Saturday > Very windy and much cooler. Cloudy with a 50 percent chance of showers. Hig > hs in the lower 50s. Southwest winds 25 to 35 mph with gusts to 55 mph. > > > ________________________________ Message 2 _____________________________________ > > > Time: 07:00:18 AM PST US > From: Dan Yocum<yocum@fnal.gov> > Subject: Re: Pietenpol-List: Milestone- Spray painting complete! > > I flew up to Dan's place yesterday and before his bodyguards carted me > off, I snapped some pictures!! They're attached. I wonder if I can > sell them to the Enquirer... > > Cheers, > Dan (the paparazzo) > > do not archive > >


    Message 12


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    Time: 04:00:19 PM PST US
    Subject: Re: rib test, wood failure
    From: helspersew@aol.com
    and how about an elephant? do not archive -----Original Message----- From: Ryan Mueller <rmueller23@gmail.com> Sent: Sat, May 8, 2010 10:30 am Subject: Re: Pietenpol-List: rib test, wood failure There are some posts in the archives that address this. In short, you are going to need about 500-1000 lbs of tractor weights, a bathtub, a hammer, a kitchen stove, and some sort of flammable liquid... Ryan Do not archive Sent from my iPhone On May 8, 2010, at 8:59 AM, "schuerrman" <sdschuerr@live.com> wrote: > > > I have two completed ribs and I was looking through the archives to > fi nd ways to test them. Could anyone point me in the right direction? ======================== ============ ======================== ============ ======================== ============ ======================== ============


    Message 13


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    Time: 04:38:58 PM PST US
    From: "Douwe Blumberg" <douweblumberg@earthlink.net>
    Subject: phone numbers
    Does anyone have a phone number for Doc Mosher and Tim Mickel? Thanks Douwe (do not archive)


    Message 14


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    Time: 04:47:18 PM PST US
    Subject: Re: phone numbers
    From: Ryan Mueller <rmueller23@gmail.com>
    Douwe, I'm emailing you their contact info from the MAAC directory. Ryan do not archive On Sat, May 8, 2010 at 6:42 PM, Douwe Blumberg <douweblumberg@earthlink.net>wrote: > douweblumberg@earthlink.net> > > Does anyone have a phone number for Doc Mosher and Tim Mickel? > > Thanks > > Douwe > > (do not archive) > >


    Message 15


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    Time: 05:40:37 PM PST US
    Subject: Weight.
    From: "skellytown flyer" <skellflyer1@yahoo.com>
    can anybody give me a pretty good guess as to where the center of gravity for the pilot or passenger is supposed to be in relation to the seat back? I'm working to get the W&B figured out on the project I bought from D.J. and the fuselage has been stretched quite a bit.I just don't know whether to use something like 4 or 5 inches ahead of the bottom of the seat back as the distance for pilot or passenger weight calculations or what. hope someone can enlighten me here. Raymond Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297140#297140


    Message 16


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    Time: 05:53:49 PM PST US
    Subject: Re: Weight.
    From: Thomas Bernie <tsbernie@earthlink.net>
    Raymond, I can give you a good idea if your GN-1 is according to the plans. Beware, the weight and balance information (example) in the plans is wrong. Look in the archives. Tom Gloucester, Mass GN-1 N666TB Going to the hanger next week. On May 8, 2010, at 8:40 PM, skellytown flyer wrote: > > can anybody give me a pretty good guess as to where the center of gravity for the pilot or passenger is supposed to be in relation to the seat back? I'm working to get the W&B figured out on the project I bought from D.J. and the fuselage has been stretched quite a bit.I just don't know whether to use something like 4 or 5 inches ahead of the bottom of the seat back as the distance for pilot or passenger weight calculations or what. hope someone can enlighten me here. Raymond > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=297140#297140 > > > > > > > > > >


    Message 17


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    Time: 05:57:48 PM PST US
    Subject: Re: Weight.
    From: Ryan Mueller <rmueller23@gmail.com>
    Raymond, If I recall correctly, DJ's project was a GN-1...if that is the case I can't say how much what I say applies to a GN-1, as I am referring to Pietenpol information. According to Don Pietenpol: "not under any condition should this airplane be flown with the C.G. more than 20" from the leading edge of the wing". You can use any reference you like to establish where the C.G. falls...the firewall, leading edge of the wing, it doesn't really matter. But what you must do is to use the C.G. that your W&B gives you to determine where that falls in relation to the leading edge of the wing. HTH, Ryan On Sat, May 8, 2010 at 7:40 PM, skellytown flyer <skellflyer1@yahoo.com>wrote: > skellflyer1@yahoo.com> > > can anybody give me a pretty good guess as to where the center of gravity > for the pilot or passenger is supposed to be in relation to the seat back? > I'm working to get the W&B figured out on the project I bought from D.J. and > the fuselage has been stretched quite a bit.I just don't know whether to use > something like 4 or 5 inches ahead of the bottom of the seat back as the > distance for pilot or passenger weight calculations or what. hope someone > can enlighten me here. Raymond > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=297140#297140 > >


    Message 18


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    Time: 06:03:38 PM PST US
    Subject: Re: Weight.
    From: "skellytown flyer" <skellflyer1@yahoo.com>
    Tom that is good to know.I have never figured out how to search the archives. maybe that's the reason I come up with questions that have been covered so often.if you would not mind visiting off list about it I'd be glad to pick your brain. but what I am trying to use is a calculator that is available on the Kansas city Dawn patrol website.I have the distances measured on my airplane using the firewall as a datum.as well as empty weights at the wheels and everything level.if I could just get a good centerline for pilot weight.I seem to remember reading once it would be at about a person's hip bone when sitting. that probably depends on the reclining angle.and whether it is a normal person or someone like me with long legs.but the figures I am coming up with sure don't look usable. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297144#297144


    Message 19


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    Time: 06:55:44 PM PST US
    Subject: Re: Weight.
    From: Thomas Bernie <tsbernie@earthlink.net>
    Raymond, If the plane is built according to the plans, the moments provided are all you need. Learn how to compute your c.g. with a pencil and a piece of paper (backwards, in your sleep) first. You have to understand it -- there is no shortcut. Tom On May 8, 2010, at 9:03 PM, skellytown flyer wrote: > > Tom that is good to know.I have never figured out how to search the archives. maybe that's the reason I come up with questions that have been covered so often.if you would not mind visiting off list about it I'd be glad to pick your brain. but what I am trying to use is a calculator that is available on the Kansas city Dawn patrol website.I have the distances measured on my airplane using the firewall as a datum.as well as empty weights at the wheels and everything level.if I could just get a good centerline for pilot weight.I seem to remember reading once it would be at about a person's hip bone when sitting. that probably depends on the reclining angle.and whether it is a normal person or someone like me with long legs.but the figures I am coming up with sure don't look usable. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=297144#297144 > > > > > > > > > >


    Message 20


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    Time: 07:03:11 PM PST US
    Subject: Re: Weight.
    From: Ryan Mueller <rmueller23@gmail.com>
    Raymond, Searching the archives isn't too difficult. First off, you have to get there. You can find it at: http://www.matronics.com/search/ The first step is to use the 'Select Archive' dropdown to choose Pietenpol. I would leave 'Message Order' at Newest First. I like to set 'Output Method' at 3 frame Index. Then you arrive at entering your search. There are instructions on the site. To boil them down: If you want to search for one word, just type the word and click Begin Search. For example, if I want to find all posts that talk about Stromberg carbs, I'll search for 'stromberg' (minus the quotes). If I want to search for a phrase, I can just enter the words. Maybe I want to see what was posted about how to build landing gear. I can enter 'landing gear', and it will find every post that contains the word 'landing' that is followed immediately by the word 'gear'. Maybe I want to find out about how elevator travel might relate to throttle usage. Well, odds are I won't find a two or three word phrase containing those words right next to each other that is common to many posts. In this case I can search for 'elevator & throttle & travel'. This will show me any posts that contain those three words, whether they are next to each other or not. Maybe you decide you want to see if there is any information about Pietenpols with Warner engines, or with Lambert engines. There may be posts on the list about one, or the other, but not both. To find them you can do a search for 'warner | lambert. The | character, which you can enter by hitting Shift plus the |\ key, means or. So you are searching for posts that contain the words 'Warner' or 'Lambert', but not both. If you need any more help with searching in the archives please feel free to shoot me an email. I can talk you through it on the phone if you are more comfortable with that, just let me know. Good luck! Ryan On Sat, May 8, 2010 at 8:03 PM, skellytown flyer <skellflyer1@yahoo.com>wrote: > skellflyer1@yahoo.com> > > Tom that is good to know.I have never figured out how to search the > archives. maybe that's the reason I come up with questions that have been > covered so often.if you would not mind visiting off list about it I'd be > glad to pick your brain. but what I am trying to use is a calculator that is > available on the Kansas city Dawn patrol website.I have the distances > measured on my airplane using the firewall as a datum.as well as empty > weights at the wheels and everything level.if I could just get a good > centerline for pilot weight.I seem to remember reading once it would be at > about a person's hip bone when sitting. that probably depends on the > reclining angle.and whether it is a normal person or someone like me with > long legs.but the figures I am coming up with sure don't look usable. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=297144#297144 > >


    Message 21


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    Time: 07:03:59 PM PST US
    Subject: Re: Weight.
    From: "skellytown flyer" <skellflyer1@yahoo.com>
    well that's one of the problems -it wasn't built to plans-it has quite a bit of stretch and as I understood from a previous post the plans had wrong info anyway. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297148#297148


    Message 22


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    Time: 07:06:57 PM PST US
    Subject: Re: Gardiner's Corvair issue, or how not to cool the
    Corvair in your Pietenpol
    From: Rick Holland <at7000ft@gmail.com>
    Interesting writeup from WW, one thing mentioned that I do not have is an air passage between the left and right eyebrow baffles, has anyone seen this on a Corvair/Piet installation? Shouldn't be too hard to add a 2 1/2" Scat hose between my eyebrows. rick On Sat, May 8, 2010 at 6:58 AM, Ryan Mueller <rmueller23@gmail.com> wrote: > I'm sure many recall the posts Gardiner made to the list recently about the > unfortunate problems he encountered with the Corvair engine he has installed > in his Pietenpol. There was the suggestion on his part that it may have been > due to subpar workmanship during assembly of the engine, which was assembled > by one of William Wynne's former hangar crew. Gardiner took the engine down > to William Wynne, and a partial teardown and analysis of the engine revealed > that it had been suffering from a combination of sketchy timing and > inadequate cooling, leading to severe detonation. The timing issue stemmed > from having an equally sketchy individual (not related to William or one of > his associates) make modifications to the distributor, and the cooling issue > stemmed from a number of flaws in Gardiner's particular cooling > configuration. William has put a detailed post on his site explaining > exactly what happened, and how to avoid these issues: > > http://flycorvair.com/pietengineissue.html > > I highly recommend giving it a read if you are at all interested in using a > Corvair, or if you are already committed to using one. Plenty of good > information. > > Gardiner, > > We wish you the best with getting the 'Vair back together and back on your > Piet. We hope you can get all the kinks sorted out and are able to fly her > to Brodhead this year! We'll be there with our new Piet, and we look forward > to seeing yours. Have a nice weekend, > > Ryan > > * > > * > > -- Rick Holland Castle Rock, Colorado "Logic is a wreath of pretty flowers, that smell bad"


    Message 23


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    Time: 07:22:15 PM PST US
    Subject: Re: Mogas and carb ice - Stromberg carbs
    From: Rick Holland <at7000ft@gmail.com>
    I love the smell of Avgas in the morning. Since then I've run nothing but 100LL in the A-75. It makes a little more > power, doesn't threaten to kill me with carb ice or leave my hands stinking, > (in fact, it smells good), and won't go bad in a short time like today's > crappy mogas. > -- Rick Holland Castle Rock, Colorado "Logic is a wreath of pretty flowers, that smell bad"


    Message 24


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    Time: 07:43:48 PM PST US
    Subject: Re: Weight.
    From: Thomas Bernie <tsbernie@earthlink.net>
    O.K. You have to put the plane on scales, weigh it empty -- compute the empty c.g. Sit in it, compute the c.g. and derive the pilot moment. Sit in the front hole, compute the c.g. and derive the passenger moment. I found the passenger moment to be in error on my plane. The scales do not lie. I had to make a new motor mount and cowling and correct for short tach, carb heat and oil temp lines (not fun). Learn it. Tom On May 8, 2010, at 10:03 PM, skellytown flyer wrote: > > well that's one of the problems -it wasn't built to plans-it has quite a bit of stretch and as I understood from a previous post the plans had wrong info anyway. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=297148#297148 > > > > > > > > > >


    Message 25


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    Time: 08:06:54 PM PST US
    Subject: Re: Weight.
    From: "skellytown flyer" <skellflyer1@yahoo.com>
    Well now that's what I need! gonna need a helper but I get it now.instead of using my weight or a pre-determined one at a certain distance.I can do it with the scales and get a real true figure. Probably something I can get done.I know I am way too far forward CG. which is unusual.but that is a way to get some realistic figures. thanks! Raymond Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297156#297156


    Message 26


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    Time: 08:28:06 PM PST US
    From: Ben Charvet <bcharvet@bellsouth.net>
    Subject: Re: Weight.
    I think I read in one of the Bingelis books to use your bellybutton as your center of gravity, but when I weighed myself in the airplane, my moment was a few inches forward of my bellybutton. I agree with the advice to do your weight and balance with the planned pilot sitting in the pilot's seat, then derive your moment. Ben Charvet On 5/8/2010 11:06 PM, skellytown flyer wrote: > --> Pietenpol-List message posted by: "skellytown flyer"<skellflyer1@yahoo.com> > > Well now that's what I need! gonna need a helper but I get it now.instead of using my weight or a pre-determined one at a certain distance.I can do it with the scales and get a real true figure. Probably something I can get done.I know I am way too far forward CG. which is unusual.but that is a way to get some realistic figures. thanks! Raymond > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=297156#297156 > > >




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