KSP Why my plane flip back-side?

[Pawelk198604]

[rakutenshi]

that's almost always caused by the center of mass being too far aft (behind the center of pressure/lift).

Suggested fixes involve using smaller wing surfaces up front (maybe RV-8s) , and or extending the fuselage to allow you to adjust the center of mass - visible by pressing the top green button on the lower left near the symmetry and snap indicators. (Centers of Mass, Thrust and Lift buttons are all there).

2 Things to keep in mind.

a. ) for a stable aircraft - the Center of Lift (will appear as blue) needs to be behind the center of mass (Yellow) but not too far back or you won't be able to maneuver at all.

b. ) Land Gears - the rearmost wheels should be located slightly behind the center of mass. if they're too far back you won't be able to pull up when going down the runway.

Edited May 4, 2015 by rakutenshi

[Tarheel1999]

FYI. Placement of the wheels seems a lot less finicky in 1.0/1.02. So far I haven't had any problems placing rear wheels at the very back even with a CoM in the center of the craft.

[Temeter]

Also keep in mind how the Center of Mass shifts. When those tanks are empty the CoM will have moved, while the Center of Lift remains stationary. Always try to kep the CoL behind the CoM, or your plane will just flip.

[Pawelk198604]

Meet K 2 Suiceder

Only only brave or stupid (or both ) ) fly that

thing -)

http://forum.kerbalspaceprogram.com/threads/118755-Why-i-cannot-reach-18-000-in-plane

Edited May 4, 2015 by Pawelk198604