ADX ADX Aircraft Performance and Weight Balance 3

Question 1

What is 'dry operating weight' (DOW) in airline weight terminology?

Accepted Answer

Aircraft weight with standard crew and equipment but without passengers, cargo, or any fuel

Answer

DOW includes the aircraft, its standard operating crew, cabin crew, catering equipment, and standard supplies, but excludes all payload and fuel.

Question 2

How does an uphill runway slope affect takeoff performance?

Accepted Answer

It increases the required takeoff distance because gravity opposes acceleration

Answer

An uphill gradient forces the aircraft to accelerate against a gravitational component, increasing the ground roll and total takeoff distance.

Question 3

What is 'accelerate-stop distance' used for in dispatch planning?

Accepted Answer

The total runway needed to reach V1 and then bring the aircraft to a full stop if takeoff is rejected

Answer

Accelerate-stop distance is a critical performance figure ensuring enough runway exists to abort a takeoff at V1 and stop safely within the pavement.

Question 4

What does 'balanced field length' mean in aircraft dispatch performance?

Accepted Answer

The runway length at which accelerate-stop distance equals accelerate-go distance past an obstacle

Answer

At balanced field length, the distance to abort and stop equals the distance to continue and clear a 35-foot obstacle, often yielding the most efficient runway use.

Question 5

What is V1 speed and why is it critical for the dispatcher?

Accepted Answer

The takeoff decision speed at or below which a rejected takeoff must be initiated

Answer

V1 is the engine-failure recognition speed; the dispatcher's performance planning ensures the runway is adequate to stop or continue based on V1 for the actual conditions.

(ADX) Aircraft Dispatcher Practice Test

(ADX) Aircraft Dispatcher Practice Test

ADX ADX Aircraft Performance and Weight Balance 3