DADE Aircraft Performance & Limitations 2

Question 1

What is the effect of a wet or contaminated runway on aircraft accelerate-stop distance?

Accepted Answer

It significantly increases stopping distance due to reduced braking effectiveness

Answer

A wet or contaminated runway reduces tire-to-runway friction, significantly increasing accelerate-stop distance and must be accounted for in dispatch performance calculations.

Question 2

When computing climb-limited takeoff weight, which condition results in the most restrictive climb gradient requirement?

Accepted Answer

Second segment climb with one engine inoperative

Answer

The second segment climb (gear up, flaps in takeoff position, one engine inoperative) typically produces the most restrictive climb gradient requirement of 2.4% for three-engine aircraft and 2.7% for two-engine aircraft.

Question 3

How does a tailwind affect takeoff performance?

Accepted Answer

It increases both ground roll and total distance to clear a 35-foot obstacle

Answer

A tailwind increases takeoff ground roll and total distance to clear obstacles because the aircraft must accelerate to a higher groundspeed to achieve the required airspeed.

Question 4

Under 14 CFR Part 121, what is the maximum allowable tailwind component that may be used for performance planning unless the AFM specifies otherwise?

Accepted Answer

10 knots

Answer

14 CFR Part 121.195 limits the tailwind component used in performance planning to 10 knots unless the AFM provides data for higher tailwind components.

Question 5

What does the term 'balanced field length' mean in aircraft performance?

Accepted Answer

The runway length where accelerate-go and accelerate-stop distances are equal

Answer

Balanced field length is the runway length at which the accelerate-go distance and the accelerate-stop distance from the same V1 are equal, optimizing the critical engine failure speed.

(DADE) Designated Aircraft Dispatch Examiner Practice Test

(DADE) Designated Aircraft Dispatch Examiner Practice Test

DADE Aircraft Performance & Limitations 2