Original Posted By: duprey(at)mailexcite.com
Hellow folks, I've got to get rid of all my tresures for thisconvertion. anyway I've got this compass, I got it from and old friendthat was in his Piet back in the 40s ......anyone interesed get backto merobert b.---"David B. Schober" wrote:>> 220 hp on a Piet! That must have had some climb performance.> > I've flown "A" powered, Corvair powered and A-65 powered Piets. TheCorvair and> "A" I flew solo and the A-65 dual. When I flew the A-65 powered Pietdual it was> early morning, summer, 400-500 foot field elevation. Climbperformance was about> the same or a little better than a Champ. I weigh about 220 and theperson with> me was about 130. I can sympothize with you about density altitudeand climb> performance. I've been hauling rides out of a 3200 ft elevationstrip here in WV> this summer. Thank God for tthe supercharger on the R985 or theHoward would have> had a hard time on those days with density altitudes over 5000'.> > To get the best performance out of the Piet is to keep the airframeas light as> possible. The structure is overbuilt for a low hp engine but withthe O-290 be> conservitive. The fact that you already added area to the verticlefin is good.> > Keep us posted on your progress.> > David Schober> > Eli or Robert or Teresa Bozeman wrote:> > > Davis B. Schober> > Back when I first built my aircamper I had lots of problems withvert.> > fin. I ended up adding 45 sq. inches to tail, this helped me out a> > hole lot. I've had it in 20 kts. strieght cross wind, don't recomend> > to get in such a x-wind but it can be done safely,in a pinch..> >> > Afew weeks ago a friend of mine put a 0-200 on his> > Piet. and what a differance that made, no more wondering if yourgoing> > to get over that wire or out of a short field> >> > as far as CG on Piet, when your building old Piet you can move the> > main wing for or aft to maintain propor CG> > For the lighter Cont 65 you aft aprox. 3 1/2-41/2" back, for heavey> > ford cabanes are strieght up and down> >> > I talk to members in the BPA about differant engines used on the> > Piet---anywhere from 39hp--------220hp.> > could use some more discussion on what I'm doing> >> > thanks Robert B.> >> > ---"David B. Schober" wrote:> > >> > > Robert,> > > If you are going to go from 65 hp to 125 hp you had better do some> > > calculations for stress and tail volume. The O-290 only weighs the> > same> > > as the Ford "A" but the added horsepower will put additionalstress on> > > the structure. The additional power will cause problems with> > directional> > > control unless you increase the verticle fin area.> > >> > > As far as your question about distance to prop flange, that> > dimension has> > > no relavence. The point you need to look for is the CG lacationof the> > > engine prop combination and mount the new engine at the same CG> > location.> > >> > > I hope this helps.> > >> > > David Schober> > >> > > Eli or Robert or Teresa Bozeman wrote:> > >> > > > Anyone, ever run out of power with a 65 Cont.? I have!!!!!!! I> > got a> > > > good deal on a 0-290G, and it wieghs the same as the model A244 lb.> > > > or so. Can any one tell me the distance from firewall to propflange> > > > on the moden A, I can't seem to find my prints.> > > > I've got 105.6hrs. on Piet and she realy flies great,> > > >> > > > Thanks much Robert Bozeman> > > >> > > > > > >> > >> > >> > > --> > >> > >> >> > >> > > David B.Schober, CPE> > > Instructor, Aviation Maintenance> > > Fairmont State College> > > National Aerospace Education Center> > > Rt. 3 Box 13> > > Bridgeport, WV 26330-9503> > > (304) 842-8300> > >> > >> > > When once you have tasted flight, you will always walk with youreyes> > > turned skyward, for there you have been and there you willalways be.> > >> > >> > >> >> > > > > > --> >> David B.Schober, CPE> Instructor, Aviation Maintenance> Fairmont State College> National Aerospace Education Center> Rt. 3 Box 13> Bridgeport, WV 26330-9503> (304) 842-8300> > > > > ________________________________________________________________________________