Hi all,
Motor axis is not paralel to the fuselage axis on FirebirdXL like planes. The motor seems to point in a downward angle. I Myself have a Wingo, and on this type of pusher plane, the motor points a little upward . Why do these motors are not simply mounted paralel to the fuse , but rather point upward or downward, depending on the pusher plane ?
-- Glowboy
My guess would be that it has something to do with the fact that the motive force is behind the CG. Also, the the Firebird type planes use the motor to control altitude. Just my guess.
If the engine is above the CG the thrust pushes the nose down on throttle up so you put in up thrust to compensate. Thrustline beneath the CG, add downthrust, as the nose is pushed up on throttle up.
Don
Thank you guys. It's quite clear now.
-- Glowboy
"Don Hatten" a écrit dans le message de news:XxGQb.20952$ snipped-for-privacy@twister2.starband.net...
Have something to add? Share your thoughts — no account required.
Ask the community — no account required