remain unchanged.

increase by 10 kt.

increase by one half of the headwind.

decrease by 10 kt.

the air distance that the aircraft would fly per unit of thrust

the ground distance that the aircraft would fly per kilogram of fuel.

the air distance that the aircraft would fly per kilogram of fuel.

the ground distance divided by air distance.

Actual flight path of the aeroplane reduced by a safety margin.

correction applied to flight path gradient to correct for non ISA conditions.

Flight path of the aeroplane with No safety margins applied.

A Increased flight path gradient to introduce a safety margin on the flight test data.

prior to touchdown because automatic braking systems must be used to determine the landing distance.

When only the main wheels are firmly on the ground, provided the nose gear can be lowered in a controlled

manner.

All wheels must be firmly on the ground before commencing any braking.

On first wheel touchdown, maximum manual braking is applied to achieve the shortest possible landing

distance.

the flex thrust is regarded as an operating limit.

flex take-offs can be conducted on contaminated runways.

on a flex take-off, the TOGA thrust remains available.

derated thrust take-offs use an assumed temperature.

3

4

1

2

(1) improve; (2) increased.

(1) deteriorate; (2) increased.

(1) deteriorate; (2) reduced.

(1) improve; (2) reduced.

same as that for clean configuration.

changed so that Vx increases and Vy decreases compared to clean configuration.

lower than that for clean configuration.

higher than that for clean configuration.

1000 feet

750 feet

500 feet

250 feet

an increased landing distance and improved go-around performance

a reduced landing distance and improved go-around performance

an increased landing distance and degraded go-around performance

a reduced landing distance and degraded go around performance