Brodhead Pietenpol Association

Original Posted By: "GrantZ"
For the "nit picky" grammarians out there who choose to focus on my wordingrather than my message.let me clarify.By using the word "mostly" I was softening my statements so as not to sounddidactic. I meant the information is "mostly" up to date and "mostly" stillconsidered "standard". If it's not "up to date" it is still very usefuland will produce a solid aircraft. Nothing on the Pietenpol plans is "up todate" either, so it's a perfect fit!! I believe you could build anairworthy and safe Pietenpol with nothing more than the plans, the Bingilisbooks and some common sense. There are no procedures mentioned in thosebooks that aren't used in a Cessna 150. Let's not become like journalists here, where we focus on one word used acertain way and disregard the main point of the statement. Let's help thosepeople who need good resources to build their airplane, and these are widelyregarded as good (invaluable to me) resources to a builder, especially afirst time builder. Where else can you go to learn about fuel flow,drilling, making fittings, toe-in, basic covering, instrument plumbing etc,etc, etc, etc, etc, etc, etc, etc, etc....?I say again, keep the books on your shelf. They will prove helpful. How's that gentlemen? Clear enough??Douwe________________________________________________________________________________Subject: Pietenpol-List: Corvair Engine Long term Layup question

Original Posted By: "aerocarjake"
I have purchased a builtup Corvair flight engine for my project. It is a FWF from a 601 (owner wanted more HP). It has 4.5 hours. It was builtusing WW's full line of parts and manuals.This engine will be in storage for at least 12 months. What are the best practicesfor long term layup? Spraying the cylinders with LPS-1 has been recommended.Does the crankshaft need to be rotated periodically?William, please weigh in here, if you would. ThanksGrant ZiebellSavannah, TNRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: books n' such

Original Posted By: "Bill Church"
Quote: "Lets not become like journalists here" ...by using words like "didactic" :-)Actually, I find "Jonathan Livingston Seagul" to be the most helpful book for buildingmy Pietenpol.There, did I stay neutral enough while adding to the spirit and helpfulness ofthis message board....? Lots of good points made by all "sides" seems like tome.My welder comes tomorrow (to weld my landing gear) and I then hope to post photos.afew days later.......!--------Jake Schultz - curator,Newport Way Air Museum (OK, it's just my home)Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: books n' such

Original Posted By: "William Wynne"
Well said, Douwe.As for the Bingelis books, do we discount the Pietenpol plans simply because thespar splice as drawn has been proven to be improper? No, we don't.Even though many early Air campers were built, and flew successfully using thesplice shown in the plans, it has been established that the splice joint is nota proper splice joint, and should not be used. The accepted practice is tofollow the methods set out in AC 43.13-2B for splice joints in spars.Likewise, builders are very unlikely to use hard cardboard for their wing leadingedges, or use "parilyn" (whatever that is) discs for the inspection windowat the aileron pulleys.Should a builder blindly follow every detail in the Pietenpol plans? Probablynot. A prudent builder would take into account the fact that the plans were drawnin 1933, and apply current knowledge and technology in their decision makingprocess. Likewise with the Bingelis books, which were written about 30 yearsago.So, as with the Pietenpol plans, let's not "throw the baby out with the bathwater."The Bingelis books are (and will remain to be) a very valuable resourcefor anyone building a homebuilt aircraft.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Corvair Engine Long term Layup question

Original Posted By: "William Wynne"
Grant,I am glad to cover this, and some of the comment may benefit other engines as well,but moving forward, I ask that more Corvair engine specific questions besent directly to me and I will cover them on our site. It makes sense for Pietbuilders to discuss Corvair engine installation things like mounts, cowls, W&Band performance in this Piet forum, but I would like to host the engine specificquestions like your on our sites and in direct email and calls. It is good for the Continental guys to talk over stuff here, and maybe the Fordguys, because they don't have the same support structure and info chain we do.It isn't anyone's full time job to work out owners questions on other engines,but with the Corvair it is mine, so we can gladly cover it and save space here.As the season gets busier, I am just going to cover our sites and not behere often, so questions are better sent direct.The record for building a Corvair, letting it sit, then flying it in a plane is11.5 years. As long as it is in a dry place, the engine can't tell time. Wrapit in a blanket before putting it in plastic, (it cuts down on condensation)and put a bare piece of steel inside the plastic where you can see it at a glance.If it looks like it is getting rusty, find a better spot for the engine.House garages are better than metal T-hangars, for both condensation and anti-theft.It is a total myth that lead is good for aircraft valves. In the presence of moisture,the byproducts of combustion of 100LL are very corrosive. Not an issueon engines frequently run, but on 6 weeks to 6 years storage, it is. For thisreason, the exhaust needs to be taped shut. On a 4 cylinder engine you can turnit to a position where all the exhaust valves are shut. I index the prop onmy wife's C-85 to be level for storage in this position. But on a six you can'tdo this, two exhausts are always off their seat. (This is the only downsideto a very smooth running engine.) The best idea is to run engines on auto fuelif they are just going to get a short test run before storage, and we do thison engines we build and sell, and also most of the ones built and run at Colleges.I just checked and you are 425 miles from CC#30 which will be held in Mexico MOin September, and 500 from CC#31 in Barnwell in November. Advice: Pack up theengine and bring it in, we will check it over and run it for an hour on autofuel. I will teach you a lot about it, and you will make new friends, and we willfeed you. This will cost you $75. Until I win the lottery, I can't actuallypay people to attend Corvair Colleges, so at this point there is still a nominalfee for food, but the event is free.)I know the engine you bought, and it is an outstanding deal. The guy sold it fora fraction of what he had in it. He lived 100 miles from Mark at Falcon, ournorthern service expert, but he didn't not want to ask for or receive assistance.He didn't know much about planes. For example he said on the zenith listthat the plane "climbed at 750fpm loaded, but it seemed to need full power justto maintain altitude" Trust me, by simple physics and aerodynamics, any lightaircraft that has a 750 fpm ROC does not need "full power" to then maintainaltitude. I can explain that to anyone, except of course a person who doesn'twant to learn. >From owning the same plane with the same engine, and having 85 other flying examplesof the same combination, I can say with some certainty the combinationworks well, I even have a builder who pulled a gross weight take off with a densityaltitude of 11,900' on the same combination. Bring the engine to the collegeand I will personally correct any maladjustments the guy made, for free,even though I didn't build the engine. (I do this just because it was made withour parts) Going back to what I said to Brian, most problems with auto enginesare people, not metal. I am very glad you have the engine now, and it is avery good sign that you are asking to learn something. Welcome to the Corvairmovement, I am glad to have you aboard. -wwRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: books n' such