Tuomas Tanska
Posts: 45
Joined: 10/4/2002 From: Oulu, FINLAND Status: offline
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quote:
ORIGINAL: GPSpacewalker What fuel prop & RPM with the 1.4L? I use my own mix: 10% Aerosave, 10% Klozy and 30% nitro. I use the same stuff with 140DZ in pattern. L with 17x8 APC peak revs was 9200RPM on full throttle and I think it is a bit too much. But with this plane I hardly ever need full throttle, the acceleration is impressive enough anyway. I can fly straight down like it had a hand brake on with the 8" pitch. About the CG.. I think a tail heavy plane is easier to hover and to elevator around without wing rockin. However at some stage you will get the plane oversteer and lift the nose on horizontal position. This makes the plane difficult to land and to fly aerobatics with. Try to find your compromise. The problem is inconstant speed and power which make the angle of alpha and the need of pull (or push) vary. These changes together with incorrect timing on any surface will encourage the wobble. Try to maintain constant speed when pulling in to higher alpha and play with the elevator just to keep it in the same position. Then adjust the altitude with the throttle.. I always have the same thing going on with a new plane, 'the feel' is unique for every design, throttle response, CG and so on. Practise and then try, do not rush into adjustments before you know the previous setting in the good and the bad. And when you know how not to rock the wing you can start to abuse the knowlege and make it to rock really dangerously and flip the plane around.. I hope this makes sense. This is how I think of it
< Message edited by Tuomas Tanska -- 3/30/2005 8:08:56 AM >
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Tuomas Tanska -F3A enthusiast-
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