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What speed is mach 2?And are the speed indicators of an aircraft in MPH format?

Are they shown in miles per hour or what?


Oh sorry I mean V2.very sorry for the mistake!

5 Answers

  • 8 years ago
    Favorite Answer

    Transport airplanes speed indicators in knots -

    Except Russians airplanes which are kilometres -

    V2 speeds are different for all airplanes and also depend on airplane weight-

    Example - a 747-200/300 at 378 tonnes and 10 flaps is 180 knots -


    Source(s): Retired airline pilot
  • 8 years ago

    Airspeed of transport category airplanes is usually indicated in knots. Some light airplanes are equipped with MPH indicators

    V2 is the takeoff safety speed and is not a fixed constant value, therefore, no one can answer you that. That's like if I asked "what's the takeoff speed of an airplane". Besides, you don't need that in a Cessna.

  • 8 years ago

    The speed of sound changes with air temperature. At a standard sea-level temperature of 59° F (15° C), the speed of sound is 761 mph (1225 km/h).At that temperature, Mach 2 would be 1522 mph (2450 km/h).

    Mach 2 is double the speed of sound.


    And It is usually in Mph.

  • 8 years ago

    V2 is the takeoff speed

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  • Anonymous
    8 years ago

    As fr as I know, aircraft speed is in knots

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