Original Posted By: Michael Perez
Subject: Pietenpol-List: right thrust offset on Continental Piet motor mountsCollecting all of the good input on this subject and talking with Mike Perez as he is starting toput his engine mount together. I followed Frank Pavliga's A-65 setup by using large washersbehind the left motor mount rubbers to give me right thrust offset. The beauty here is that youcan add and subtract these washers as you see fit during the trimming and flight test periods.The only limitation you might run into is cowling/nosebowl interference but it is worth a try ifyour plane doesn't fly quite true. You can also washer in downthrust if you think it needs it butthe Pietenpol motor mount gives enough downthrust (I believe) as drawn/designed.Was just talking with Mike yesterday about the (okay...I'm even getting sick of myself mentioningmy Uncle Tony but...) flight test/ wing-aileron-tailfeather procedure that Tony describes in his books.I followed that procedure adjusting wing forks and such and finally added a small ground-adjustablealuminum trim tab to the rudder that requires just a little offset for mine to fly true, feet flat, hands-off.It took some doing finding calm air and run these up and down trials but well worth it. Who knows,I may have even gained 2 mph with the drag reduction in the process.Mike C.[cid:image001.png(at)01CD3FE2.DC077F10] [cid:image002.png(at)01CD3FE2.DC077F10]________________________________________________________________________________Date: Fri, 1 Jun 2012 09:02:15 -0700 (PDT)
Pietenpol-List: right thrust offset on Continental Piet motor mounts
Re: Pietenpol-List: right thrust offset on Continental Piet motor mounts
Original Posted By: "TOM STINEMETZE"