Landing Performance

Question 1

What is the definition of LDA

How high is obstacle

Answer 1

LANDING DISTANCE AVAILABLE
Distance required to come to a stop from heigh of 50 ft

Question 2

What is the definition of the following velocity speed

Vmc

Answer 2

MINIMUM CONTROL SPEED
Twin engine aircraft

Required to maintain direction control in event of an engine failure

Question 3

What is the definition of the following velocity speed

Vref

Answer 3

REFERENCE LANDING SPEED

Used at the 50 ft obstacle barrier height for which all landing distances are calculated

Question 4

What is the definition of the following velocity speed

Vat

Answer 4

APPROACH THRESHOLD SPEED

Dirty stall speed +30%

Speed AT which to perform the approach in landing configuration

Question 5

A “dirty” stall speed (configured for landing) is 40 knots. What is the approach speed

REMEMBER: Dirty stall speed + 30%

Answer 5

52 kts

40 x 1.3

Question 6

Headwind component during landing

A headwind component INCREASES or DECREASES the landing distance.

Answer 6

DECREASES

Question 7

Headwind component during landing

A headwind component INCREASES or DECREASES the descent angle

Answer 7

INCREASES
(Steeper)

Due to decreased ground speed

Question 8

Tailwind component during landing

A tailwind component INCREASES or DECREASES the landing distance

Answer 8

INCREASES
(significantly!)

Question 9

Tailwind component during landing

A tailwind component INCREASES or DECREASES the descent angle

Answer 9

DECREASES
(shallower)

Due to increased ground speed

Question 10

A tailwind generic factor component of lift-off speed is ____ % and a factor of ____

Answer 10

1. 20%
2. 1.2

Question 11

Flaps used on landing do what to lift, the approach speed, and drag

Answer 11

1. INCREASE lift
2. DECREASE speed
3. INCREASE drag

Can fly more stable
Flaps create more lift, which creates more drag

Question 12

Flaps result in HIGHER or LOWER nose attitude.
What benefit does this give to the pilot

Answer 12

1. LOWER
2. Better forward visibility

Question 13

An increase in mass will INCREASE or DECREASE the landing distance

Answer 13

INCREASE

Question 14

What are the generic factor % increases for the following conditions

1. Dry Grass (20 cm)
2. Wet Grass (20 cm)
3. Soft ground or Snow

Answer 14

1. 15% (1.15)
2. 35% (1.35)
3. 25%+ (1.25+)

Question 15

A down sloping runway INCREASES or DECREASES braking effectiveness and has what effect on landing distance

Answer 15

1. DECREASED
2. LONGER

Question 16

The downhill 2% slope generic factor % increase

Answer 16

10% (1.10)

Question 17

What is the CAA generic factors “safety factor” to take into account after all other factors are calculated

Answer 17

43% (1.43)