Motorman,
I am intermediate flyer as I have done only junior patern so far (round outside loop, inverted flight, wingover, horizontal eight) plus some senior pattern figures (round inside loops, vertical eight) with my IC engine stunter. However passing to the e-vector 40 I struggle even with the round loops (at the point that I have to step back in the first loop) so I don't think there is a finesse problem here.
Massimo,
Indeed I found a warp in one of the wings and flap, even if for me the plane was flying with wings level both upright and inverted. So I corrected the warps and I feel a small improvement. That, together with leadouts 5 mm barckwards (so now at 22mm behind CG) generates acceptable tension in the wingover. I checked hingelines and every other parallelism and all seems good to me.
Ken,
LO 0.25 inch back from CG ? Are you sure? Not rather 1.25 inches ? And CG position shouldn't affect line tension, only pitch sensitivity, so if yours had the CG a little more forward it should only be less sensitive to pitch commands compared to mine.
Denis,
I measured the timer output signal with an oscilloscope (I'm an electronics engineer) so I am sure that the signal is steady. The ESC receives the same throttle input no matter the position of the plane so I highly doubt that it is loosing RPM overhead. Besides, I checked the logged RPM of the ESC and it is quite constant (only a small drop of 50 RPM when entering the figures). I tried pushing the LO even more towards the rear but it begins to loose tension in the wingover. So I will try adding more tip weight first, see if the round loops improve and then retry moving the LO more aft. I will also try a cut down 13x5 to 12x5 but I don't think it will do miracles (fingers crossed).
Teo,
The governor gain is set at a custom 45 even higher than the 'high' settings of the ESC which is 35. I honestly am surprised that the RPM doesn't oscillate. So to be completely honest I doubt that the problem comes from loosing RPM.
I attached the data of the ESC. Let me know if you I missed something and you manage to see something suspicious.
Do you guys know if moving the LO aft requires more tip weight ?
Also, do you know how to reduce hinging due to the wind ? When I fly in the wind the plane rolls towards the inside a little each time the wind hits it laterally.