POF friday Flashcards
1
Q
True or false? All ac must possess positive longitudinal stability
A
True
2
Q
Short period oscillations
A
Little effect on airspeed.
Happen per second. (Short burst) very dangerous.
3
Q
Long period oscillations (Phugoid)
A
Happen per minute.
Increase air speed downwards.
4
Q
The tailplane is the most important contributor to aircraft stability. T or f
A
True
5
Q
Neutral point
A
Equal moment either side. Between Np and CG and Np and AC. Means aircraft will not respond to longitudinal controls. Not enough force from tail plane, neither will Cg do anything.