---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Sun 09/17/06: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:20 PM - props on corvair motors (TGSTONE236@aol.com) 2. 02:35 PM - Re: props on corvair motors (shad bell) 3. 08:08 PM - Re: props on corvair motors (Roman Bukolt) ________________________________ Message 1 _____________________________________ Time: 12:20:22 PM PST US From: TGSTONE236@aol.com Subject: Pietenpol-List: props on corvair motors I am curious as to the props used on Corvair engines on the Pietenpol. The composite props do not look right on the 70 + year old design. what length and pitch are most of you using and what Prop company manufactured it or did you make your own? Ted Stone I have quite aways to go before I need a prop. ________________________________ Message 2 _____________________________________ Time: 02:35:37 PM PST US From: shad bell Subject: Re: Pietenpol-List: props on corvair motors Hello Ted my dad uses a Heggy 66in diameter with a 30 in pitch. This prop made more than enough thrust. We were getting 3200-3300 rpm with a marvel schebler ma3spa carb. Unfortunatly we had a crank failure about 4 weeks ago so we have to build another engine. Prop stayed on but engine will be mostly trashed. We took the engine off yesterday and took it back to Dad's garage to rebuild. We are waiting to hear from William Wynne to see what input he might have as to reason for the failure. I'm told it is imperitive with the Corvair to have your prop indexed 90 degrees to the front rod (#6) journal. I am not sure but believe ours was, It may not have been. Talking to a guy who used to build racing airplane engines, he said where our crank broke sounded like prop vibration caused it. I dont meen to scare you with this info, just precautionary and I dont want the same to happen to anyone else. Feel free to email me off the list I will try to keep list updated on what, if anything we find out about the crank failure. Sincerly Shad TGSTONE236@aol.com wrote: I am curious as to the props used on Corvair engines on the Pietenpol. The composite props do not look right on the 70 + year old design. what length and pitch are most of you using and what Prop company manufactured it or did you make your own? Ted Stone I have quite aways to go before I need a prop. --------------------------------- ________________________________ Message 3 _____________________________________ Time: 08:08:03 PM PST US From: "Roman Bukolt" Subject: Re: Pietenpol-List: props on corvair motors Hi! I just received my prop yesterday which I purchased through William Wynne. At his request, I sent him a check for $700 in May. He, then, ordered the prop from Sensenich. It's a beautiful piece of woodwork with somewhat of a scimitar shape. Diameter is 64 " and the pitch is 52 ". ----- Original Message ----- From: TGSTONE236@aol.com To: pietenpol-list@matronics.com Sent: Sunday, September 17, 2006 2:19 PM Subject: Pietenpol-List: props on corvair motors I am curious as to the props used on Corvair engines on the Pietenpol. The composite props do not look right on the 70 + year old design. what length and pitch are most of you using and what Prop company manufactured it or did you make your own? Ted Stone I have quite aways to go before I need a prop.