20 Descending And Gliding Flashcards
1
Q
In a decent what are the angles involved?
A
Pitch angle + AOA = Flight path angle
2
Q
What is Excess Drag?
A
D-T
3
Q
Equation for angle of decent?
A
Sin(gamma) = (D-T)/w
4
Q
Vmo
A
Velocity of maximum operating
-Gives steepest decent
5
Q
Equation for drag in a Glide
A
D = w x Sin(gamma)
6
Q
What factors will give the greatest Glide Range?
What is the speed for the best Glide Range?
A
- Decent angle to be as small as possible
- Want w x Sin(gamma) as small as possible
- Drag as small as possible
- Vmd gives the best Glide Range
- 4 degrees AOA, CL/CD Max
7
Q
Equation for the Glide Range
A
Glide Range = height x L/D ratio
8
Q
What speed gives:
- Best Glide endurance
- Best Glide range
A
- Glide endurance: Vmp
- Glide Range: Vmd
9
Q
What is Vmp in relation to Vmd?
A
Vmp = 0.76 x Vmd
10
Q
What effect does weight have of Gliding?
A
- Heavier weight will not effect the Glide Range
- Heavier weight will have an effect on the Glide Endurance
- More weight reduces Glide Endurance
11
Q
What effect does the wind have on gliding?
A
- Head wind will reduce Glide range but will have no effect on Glide endurance.
- Tail wind will increase Glide range.
12
Q
Effect of flaps and landing gear on Gliding:
A
Flaps and landing gear will produce more drag and so will reduce both Glide Range and Glide Endurance
