Climb Performance

Question 1

Aircraft in un-accelerated level flight, what are the 4 forces equal to

Answer 1

LIFT = WEIGHT
THRUST = DRAG

Question 2

What force is more needed of for climb

Answer 2

LIFT

Question 3

What are 2 methods of increasing lift

Answer 3

1. Airspeed
2. AoA

Faster airspeed, more airflow over aerofoil creates more lift
Increased AoA creates more life

Question 4

What are the 2 forms of drag

Answer 4

1. Induced
2. Parasite (form)

Question 5

Total drag is a combination of what

Answer 5

1. Induced Drag
2. Parasite Drag

Question 6

Performance is a factor of what elemt

Answer 6

POWER (Thrust)

Power to produce lift which overcomes drag

Question 7

Thrust is a function of ____ but does not take into account what

Answer 7

1. POWER
2. WORK (per unit time)

Question 8

What does the veolicty speed represent

Vx

Answer 8

BEST ANGLE OF CLIMB

REMEMBER: All the corners of the X make angles

Question 9

What type of curve is represented on the best angle of climb (Vx) graph

Answer 9

THRUST CURVE

Question 10

What type of curve is represented on the best rate of climb (Vy) graph

Answer 10

POWER CURVE

Question 11

Vx and Vy both decrease by ____kt for every ____lbs HIGHER or LOWER than aircraft MAUW

Answer 11

1. 1 kt
2. 100 lbs
3. LOWER

Question 12

Vy INCREASES or DECREASES by ____kt for every ____ft increase in ____ altitude

REMEMBER: Y

Answer 12

1. DECREASES
2. 1 kt
3. 1000 ft
4. DENSITY

REMEMBER: The tail of the Y points down = DECREASES

Question 13

Vx INCREASES or DECREASES by ____ kt for every ____ft increase in ____ altitude

Remember: X

Answer 13

1. INCREASES
2. 1 kt
3. 1000 ft
4. DENSITY

REMEMBER: X is a sideways plus ( + ) symbol = INCREASES

Question 14

Rule of thumb for cruise climb

The best cruise climb speed should be HIGHER or LOWER speed than Vy or Vx by the same airspeed margin as V ____ is above V ____

Answer 14

1. HIGHER
2. Vy
3. Vy
4. Vx

Question 15

What is the rule of thumb equation for cruise climb speed

Answer 15

Vy + (Vy - Vx)