Pietenpol-List: Corvair/ B. Pietenpol installed saftey shaft?

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Pietenpol-List: Corvair/ B. Pietenpol installed saftey shaft?

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Original Posted By: "Oscar Zuniga"
Some time back I purchased a Corvair crank with a prop hub and safety shaftthat according to the seller was installed by Bernard himself. I have abetter crank that I intend to use instead and I would like to remove thesafety shaft from the crank that the hub came with in order to reuse it onmy good crank. This may be more of a Corvaircraft list question, but sinceit is a Bernard Pietenpol installation, I figure the answer may well residewithin the epistemological plurality of this board. I have just beeninformed of the possibility that the safety shaft may be cross pinned to thecrank underneath the crank timing gear/ hub. Can anyone on this list confirmthis information?Michael SilviusScarborough, Maine________________________________________________________________________________
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Pietenpol-List: Corvair/ B. Pietenpol installed saftey shaft?

Post by matronics »

Original Posted By: Jdavis2a(at)wmconnect.com
I don't know about epistemological plurality, but the Pietenpol Corvair conversion drawings that I have don't show a cross-pin through the safety shaft under the gear. That was a William Wynne enhancement. If yours is a true Pietenpol hub conversion, the safety shaft should be simply threaded into the crank nose.Anybody else see a cross-pin?Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________
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Re: Pietenpol-List: Corvair/ B. Pietenpol installed saftey shaft?

Post by matronics »

Original Posted By: "Barry Davis"
Subject: Re: Pietenpol-List: Corvair/ B. Pietenpol installed saftey shaft?I agree. I don't see any cross pin on my plans either. My corvair was converted per Pietenpol's plans and I did not install any pins. JIM________________________________________________________________________________
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Re: Pietenpol-List: Corvair/ B. Pietenpol installed saftey shaft?

Post by matronics »

Original Posted By: "MICHAEL SILVIUS"
If it is locktighted in, just heat to 300 F and remove.Be sure to wait till your wife goes to the store before you poke that crankshaft in the kitchen oven for a half hour or so. If not, she may remind you of this for the rest of your life.bed----- Original Message -----
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Re: Pietenpol-List: Corvair/ B. Pietenpol installed saftey shaft?

Post by matronics »

Original Posted By: "Oscar Zuniga"
Oscar et all:Many thanks for the responses, I have my answer. Per plans, and per Mr. DanWilson on this list who just spoke w/ Vi Kapler. Vi worked with B. Pietenpolthrough the 1970s, and he confirmed that "Bernard never removed a crank gearfrom any crankshaft that he ever used for an aircraft" and thus no X pinswould be beneath the timing gear. This is good information. It means I caneasily pull and reuse the safety shaft on my good crank. I shall use theoven for heat to 300 deg as recommended, once I locate a suitable size locknut.thanks to you all:Michael Silvius in Scarborough, Maine----- Original Message -----
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Pietenpol-List: Corvair/ B. Pietenpol installed saftey shaft?

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Original Posted By: Ben Ramler
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Re: Pietenpol-List: Corvair/ B. Pietenpol installed saftey shaft?

Post by matronics »

Original Posted By: "Oscar Zuniga"
In the William Wynne manual he talks about how an engineer explained to himthat it was a stress riser and he hasn't used one since. He just says touse locktite. Look at page 35 of the WW Conversion Manual for hisdiscussion on the topic.Glenn----- Original Message -----
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Re: Pietenpol-List: height

Post by matronics »

Original Posted By: Ben Ramler
BenThere is a Piet in Canada on skis. I have seen pics of Piets with a full canopyfor winter flying. I'm in Mn and chose not to winter fly. Of course, watchingthe local weather at times SW MN. seems like the tropics compared to Northof St. Paul.On height, I have seen guys around 6' 2" in the front seat. The bigger problemis weight. The tall guy would have to be pretty skinny. I havent tried carryingmore than 175 lbs in front. Thats with min fuel and a cool day. I knowsome have carried much more.Dick N. ----- Original Message -----
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Pietenpol-List: height

Post by matronics »

Original Posted By: Tim Willis
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