AA1213 Climb performance

Question 1

What is the relationship between lift and weight in a stabilized climb?

Answer 1

Lift is less than weight

Question 2

What are the conditions required to achieve maximum angle of climb in turbojet aircraft?

Answer 2

Occurs when difference between thrust and drag is greatest (L/Dmax CAS)

Question 3

If an aircraft is heavy vs. light, what will happen to its maximum climb angle?

Answer 3

Decrease

Question 4

If an aircraft is configured vs. clean, what will happen to its maximum climb angle?

Answer 4

Decrease

Question 5

If an aircraft is higher, what will happen to its maximum climb angle?

Answer 5

Decrease

Question 6

What are the conditions required to achieve maximum rate of climb in turbojet aircraft?

Answer 6

Occurs at speed which maximizes excess power (excess thrust x TAS)

Question 7

If an aircraft is in a stabilized descent, what is the relationship between lift and weight?

Answer 7

Lift is less than weight

Question 8

If an aircraft is in a stabilized descent, what is the relationship between thrust and drag?

Answer 8

thrust is less than drag

Question 9

What is the definition of glide angle?

Answer 9

Angle between horizon and the flightpath

Question 10

What is the definition of glide distance?

Answer 10

Horizontal distance travelled in the descent

Question 11

What is the definition of glide ratio?

Answer 11

ratio of horizontal distance to vertical distance (X/Y)

Question 12

What are the conditions required to achieve maximum glide ratio in a turbojet aircraft?)

Answer 12

Fly at L/D max or minimize drag (230+1 knot per pound of fuel in T-38

Question 13

How does glide ratio change with weight?

Answer 13

Unchanged

Question 14

How does glide ratio change with configuration?

Answer 14

Parasite drag increases, so glide angle is steeper and distance is shorter

Question 15

How does glide ratio change with wind?

Answer 15

Slower CAS in tailwind, faster CAS in headwind