POF Monday Flashcards
1
Q
Prop efficiency =
A
Thrust power / shaft power
2
Q
Slip angle (B- beta) positive when
A
Coming from the right of aircraft
3
Q
Positive Yaw (N) when
A
Aircraft points nose back to the right
4
Q
Spiral instability
A
Directional stability greater than lateral stability
5
Q
Dutch roll
A
Lateral stability is strong. Directional stability weak.
6
Q
To counter effect of Dutch roll…
A
yaw damper system is used. Cannot fly without one
7
Q
Increased TAS for the same disturbance with a lower TAS, means a smaller
A
Sideslip angle
8
Q
Smaller sideslip angle…
A
Smaller amount of dynamic stability needed
9
Q
Coarse props at
Fine props at
A
High speed
Low speed
10
Q
When engine failure, props are
A
Fined
11
Q
Reverse thrust is the result of
A
Negative AOA
