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If the flap selection is changed from 5° to 15° then V2 will:
  • A
    stay the same.
  • B
    decrease.
  • C
    none of the above.
  • D
    increase.

V2 speed is the safety speed to be attained at the screen height with one engine inoperative for multi-engine Class A and B aircraft. With only one engine V2 is not a requirement for a single-engine aircraft.

V2MIN may not be lower than VSR (assumed to be the same as VS1G) multiplied by a safety margin. This safety margin is determined by the aircraft class and engine configuration.

When limited by the take-off distance available to it is important to reduce the reference stall speed in order reduce the take-off distance required. With a higher flap angle setting, the profile of the wing is changed and the wing’s capability to provide lift at low speed increases, thus reducing the reference stall speed and consequently V2MIN.

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