Papa November Posted October 13, 2021 Share Posted October 13, 2021 Hello all, I intend to enter sport class pylon racing next year with my long EZ F-PZPN. She is totally by the plans with a O-235 engine. With light speed dual ignition, spinner and wheel pants, hertzler prop on a long extension, she gives me almost 180 kts IAS at SL with full throttle. At that speed, the engine runs right at redline (2800 rpm). However, given the competition (vans, lancairs,…) , I feel I will have to do some more preparation if I want to stay in the race. The first idea that springs to mind is a bigger engine, of course. A O-320 would be the immediate choice, as It fits on the existing mount. I need to find one of these. beside from that, any idea from people who have been here before, even small mods that will give a small gain in drag? Of course, going faster would need to expand VNE, and thus recalcule VD and test fly the aircraft… Is there someone who could provide the profiles used for the wing and canard (or even best, the Cl/Cd curves)? thanks for your input, and all the best… Quote Link to comment Share on other sites More sharing options...
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