Brodhead Pietenpol Association

Original Posted By: "Alex Sloan"
Piet long tubular fuse available with formers, floor boards, 2 sticks with torquetube, rudder pedals and miscellaneous. $1500.00. Also available 2 Lyc.0-145 65 HP, prop and eng. mts. For details call: Lloyd Moore 239/693-2605.________________________________________________________________________________

Original Posted By: Michael D Cuy
Subject: Re: Pietenpol-List: Piet tube fuse availableLloyd,Where is area code 239?Greg________________________________________________________________________________Date: Fri, 23 Jan 2004 14:36:17 -0500

Original Posted By: Isablcorky(at)aol.com
My understanding is that the location of the axle is determined by thelocation of the CG, both in height above and distance behind the axle. Therelationship between the location of the CG and the axle effects the balancebetween a minimum longitudinal moment required during braking (needed toapply brakes and not nose over) and an instability in the vertical axiswhile on the ground (the propensity for a tail dragger to ground loop).It's the relationship between the axle and the CG which matters, not theaxle and the wing. Since moving the wing back 4" only changes the CGposition a fraction of an inch, would it really be necessary to change theaxle location because of the new wing location?Or, is it the fact that the 4" wing relcation is in response to a 4"movement of the CG. Movement of the wing would then be an indicator of a CGmovement. With this said, I agree with DJ in the solution of moving theengine forward for a tail heavy (or pilot heavy) Piet, which keeps the CG inthe same spot and the geometry between the CG and the axle (and also the CGand the tail volume) the same.Then again, I've not heard of any that have moved the wing back and foundthey had control problems because of it.Robert HainesDu Quoin, Illinois________________________________________________________________________________