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Performance > Flaps setting calcs, NTOFP, Obstacle accounting, climb variables (24-05-18) > Flashcards

Flaps setting calcs, NTOFP, Obstacle accounting, climb variables (24-05-18) Flashcards

1
Q

What are the steps for calculating best flap setting for TO?

A

Correct flap setting RLTOMs for HWC (add mass) or TWC (minus mass)

Select lowest from each flap setting out of CLTOM and RLTOM

Select the highest mass from the flap settings.

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2
Q

What is CLTOM limited by?

A

Weight, Altitude, Temperature

WAT

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3
Q

What defines the start and finish of section 1 of the NTOFP?

A

Start: screen height or gear up selected

End: gear up

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4
Q

What marks the start and the end of stage 2 of the NTOFP?

A

Start: gear up

end: Minimum 400ft agl, Maximum: whatever has been achieved with 5 mins TOGA.

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5
Q

What marks the start and the end of stage 3 of the NTOFP?

A

Start: minimum: 400ft agl, maximum: whatever has been reached with 5 mins at TOGA.

End: VFTO (final TO speed)

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6
Q

What marks the start and finish of stage 4 of the NTOFP?

A

Start: VFTO

End: 1500ft

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7
Q

What is the minimum speed required between stage 1 and 3 of the NTOFP?

A

V2

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8
Q

What thrust setting must be applied between stages 1 and 3 of the NTOFP?

A

TOGA

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9
Q

What is the minimum obstacle clearance during the NTOFP?

A

The same as screen height or 50ft when turning.

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10
Q

What is the purpose of stage 3 of the NTOFP?

A

Accelerating to VFTO

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11
Q

What thrus setting must be set at the end of stage 3 of the NTOFP?

A

Maximum continuos thrust, MCT.

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12
Q

What length of time is TOGA thrust limited to in one instance?

A

5 minutes

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13
Q

What height must an aircraft be in order to be able to perform a legal turn of 15degAoB in the NTOFP?

A

50 - 400ft

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14
Q

How high must an aircraft be in order to legally bank 25degAoB in the NTOFP?

A

>400ft

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15
Q

Through what range of heights is an aircraft not allowed to turn in the NTOFP?

A

0 - 50ft

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16
Q

Given special authorisation, when is an aircraft allowed to perform a 20degAoB turn in the NTOFP?

A

200 - 400ft

17
Q

Given special authorisation, above what height is an aircraft allowed to perform a turn of 30degAoB in the NTOFP?

A

>400ft

18
Q

What are the climb gradient requirements for the different stages of the NTOFP with 2, 3 and 4 engines (before engine failure)?

A

Figure

19
Q

What are the net/gross gradient conversions for 2, 3 and 4 engine aircraft?

A

Figure

20
Q

Which climb gradient is higher in a climb between net and gross?

A

Gross climb gradient

21
Q

Which has a steeper gradient in the descent between net and gross?

A

Net is steeper.

22
Q

What is the gradient reduction in 15, 20 and 25 deg AoB turns and speed change required, for the NTOFP?

A

Figure

23
Q

Where is the engine expected to fail in the NTOFP for a class B aircraft?

A

Where both the minimum height is 300ft AND where visibility has been lost (in cloud)

24
Q

At what height does the NTOFP end for the class B aircraft?

A

1500ft

25
Q

What is the minimum climb gradient required from a Class B aircraft, with TO power set, flaps in TO position and gear extended?

A

4% gradient

26
Q

for a Class B aircraft with OEI, at what altitude must the aircraft be capably of a positive climb with gear retracted, flaps in TO position and TO power on remaining engine?

A

400ft

27
Q

For a class B aircraft with OEI, what climb gradient must be acheived at the end of the NTOFP (1500ft) with gear and flaps up, MCP and failed engine prop feathered?

A

0.75% gradient

28
Q

What is the area for which obstacles must be taken into account?

A

From initial semi-width expanding away from the end of the TODA to a maximum expansion:

29
Q

Regarding obstacle accountability, how is semi width calculated at a give point from the end of the TODA?

A

It is the smallest of:

initial semi-width + expansion

or

maximum semi width

30
Q

How is initial semi width calculated for obstacle accountability?

A

1/2 wingspan + 60

(max 90)

31
Q

How is expansion calculated for obstacle accountability?

A

0.125 x distance from TODA.

32
Q

What are the maximum semi width conditions for obstacle accountability?

A

Figure

33
Q

How do the variables: IAS, AoA, CL, Climb gradient, TAS, pitch and RoC

change with constant: IAS, crossover or Mach?

A

Figure

Performance (12 decks)

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