Scheduled Performance - Take off

Question 1

What is the Maximum Regulated Take Off Weight? (MRTOW)

Answer 1

The least weight obtained after considering:

Certificate of Airworthiness (C of A) limit. This specifies maximum structural take-off weight for the type of aircraft that must not be exceeded
Take-off field length requirements
Net take-off climb gradients
En route terrain clearance
Approach and landing climb gradients
Landing distance requirements

Question 2

What is the take-off stage?

Answer 2

The Take-Off stage of SP planning begins at the Brake Release Point (BRP) and includes the ground run to the point of lift-off and the initial climb up to a defined screen height (35 ft for Perf A Aircraft).

Question 3

What are the take off field lengths?

Answer 3

Runways
Stopway
Clearway

Question 4

What is a runway?

Answer 4

A defined rectangular area with a surface able to support the weight of aircraft during take-off and landing

Question 5

What is a Stopway?

Answer 5

A defined rectangular area at the end of and the same width as the runway, designated as a suitable area in which an aircraft can be stopped in the case of an abandoned take-off

Question 6

What is a clearway?

Answer 6

A defined rectangular area either side of the centreline at the end of the runway, under control of the airport authority, clear of any obstacles that would affect an aircraft’s initial climb to its screen height

Question 7

What is the Take-off Run available? (TORA)

Answer 7

The available length of surface able to bear the weight of an aircraft during take-off. Normally this is the length of the paved runway between the thresholds

Question 8

What is Accelerate Stop Distance Available (ASDA)?

Answer 8

TORA plus the length of the available Stopway

Question 9

What is the Take-Off Distance Available (TODA)

Answer 9

TORA plus the length of the available Clearway. TODA is not to exceed 1.5 × TORA

Question 10

What are the Factors Affecting Field Lengths Required?

Answer 10

Aircraft take-off weight (TOW)
The pressure altitude at the airfield
The ambient temperature at the airfield
Runway surface condition
Runway slope
≤ 50% of the reported headwind component
≥ 150% of the reported tailwind component

Question 11

What are the factors affecting v1?

Answer 11

Weight : Increasing weight increases V1
Flaps: Increasing flap angle increases V1
Air Density: Decreasing air density (hot and high) increases V1
Wind: Headwinds increase V1 (easier to stop) Tailwinds reduce V1 (less distance to stop)
Runway slope: Downslope reduces V1, upslope increases V1

Question 12

How much does V1 drop on a wet runway on the phenom?

Answer 12

10 Kts