Turning And Stalling Flashcards
(15 cards)
1
Q
Force acting towards the centre of the turn
A
Centripetal force
- Keeps the aircraft turning
- Centrifugal opposes
2
Q
Force that opposes lift increases a turn
A
Loading
3
Q
Opposite to vertical component of lift
A
Weight
4
Q
Load factor
A
- The ratio of lift upon weight
- Load factor = lift/weight
- AKA apparent weight
5
Q
Effect of load factor on the angle of bank
A
Load factor = 1/cos angle
E.g. Load factor = 1/cos 60
= 1/0.5 = 2G
6
Q
30 degree AoB
A
= 1.15g
7
Q
45 degree AoB
A
= 1.41G
8
Q
60 degrees angle of bank
A
= 2G
9
Q
Effect of stall speed
A
- Load factor increases the stall speed significantly
10
Q
30 degree AoB =
A
7% increase
11
Q
45 degree AoB =
A
19% increase
12
Q
60 degree AoB =
A
41% increase
13
Q
75 degree AoB =
A
100% increase
14
Q
Stall speed calculation formula
A
New stall speed = basic stall x root(load factor)
15
Q
Design manoeuvre speed
A
The speed at which, when increasing the angle of attack, the max loading is reached before stalling, resulting in airframe damage
