Takeoff Flight Path Segments

Question 1

2nd segment

Answer 1

Gear up, flap takeoff, take off power, v2 speed, gear up to at least 400ft above reference zero.
Gradient gross 2.4% , net 1.6%

Question 2

First segment ends when

Answer 2

Gear is up

Question 3

2.4% climb gradient needed in what segment

Answer 3

Second segment ONLY, otherwise 1.2% with 0.8% difference between gross and net

Question 4

Second segment starts when

Answer 4

After gear is up, therefore the only difference from take off is the gear, and climb gradient required.

Ends at NO LESS than 400ft, or safe altitude. (Same as twin otter departure)

Example, departure from the palm gross gradient cannot be less than 2.4% below 400 feet. Once above 400 feet, flaps are attracted with take off power still set.

For a jet, aircraft need to accelerate to flat retraction speed before retracting flap. Obviously must be above 400 feet or a safe altitude before accelerating to flap retraction speed.

Question 5

3rd segment 1st part

Answer 5

The segment for accelerating from v2, to flap retraction velocity.

Must be at least 400 ft above reference 0, however gross climb gradient will be 1.2% with 0.8% margin between gross and net climb gradient.

Question 6

3rd segment second part

Answer 6

The segment for when the flaps are being retracted, speed changes from flap retraction velocity to velocity clean