Brodhead Pietenpol Association

Original Posted By: Joe

Original Posted By: Michael D Cuy

Original Posted By: Gary Gower
Subject: Re: Pietenpol-List: Those of you with wood props.......Mike,Wow! That couldn't be foot-lbs, could it? I don't know anything abouttorque values for attaching propellers - is 200 inch-lbs common?Mark BoyntonGilbert, AZP.S. The 90 horse Franklin I'm purchasing comes with a Falcon prop, so I'minterested.> > Guys- my Falcon 72"-42P wood prop came with instructions to> torque the bolts to 220 inch-pounds..> > CORRECTION, that should read 200 inch-lbs.> MC> > > > >Say Bye to Slow Internet!http://www.home.com/xinbox/signup.html_ ... ______Date: Tue, 29 Aug 2000 08:59:58 -0700 (PDT)

Original Posted By: nle97(at)juno.com
Yes the 200 inch-lbs is correct. Remember that a wood prop is much softerthan a metal prop. To apply the same torque values to a wood prop ascompared to a metal prop would crush the wood fiber. Properly applied torquewill just make a slight indentation in the wood face.One other thing about wooden props. When your airplane is going to sit forsome time, try to position the propeller horizontally. Minute movements ofmoisture and sap when positioned vertically over a long period of time canlead to a slight out-of-balance condition. I have actually seen this happenon a Sensenich and a Lewis. The Sensenich was on a Champ and storedvertically for a year. The Lewis was in my living room as a greatconversation piece. I learned my lesson and now the Lewis hangs above mycouch in a horizontal position.TakeCare,-john->> I check my prop bolts twice a year, independent of the> hours flown (end of winter (Feb-March) and end of> raining season (October-November)).>> >> > Guys- my Falcon 72"-42P wood prop came with> > instructions to> > torque the bolts to 220 inch-pounds..> >> > CORRECTION, that should read 200 inch-lbs.> > MC________________________________________________________________________________

Original Posted By: "mboynton(at)excite.com
Subject: Re: Pietenpol-List: Those of you with wood props.......Mark, 200 Inch pounds is normal. With metal prop using 3/8" bolts (9/16wrench) the torque would be 25 ft. pounds which isn't much more thanthat. John LangstonPipe Creek, TXnle97(at)juno.com________________________________________________________________________________