Sunday, May 17, 2009

Fokker F27










Twin motor model.
I modified the wings such that they can be removable for easier storage.
The fuselage and paint is perfect.

It is powered by 2 towerpro 2408 1500kv motor at 15A @. Using 7x6 CW GWS propeller. T0tal thrust ~1100g with 3s lipo.
I use 3s 25c 3,300 mAH lipo and the C.G. is correct from the manual.

Maiden almost result in crash as banking left turn with rudder and aileron results in left wing stall. Luckily, it recovered from the stall as there is sufficent attitude. Initially think of BEC or aileron servo problem but benchtest nothing. It is not until the third flight that it happens again on rudder only yaw. The forth flight has another stall on taking off on slight elevator input. Damage was minimal as the take off height is only less than 1m.