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| Maximum Mach Operation speed |
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| Vfe (1 - 8 degrees of flaps) |
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| Vfe (9-20 degrees of flaps) |
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| Vfe (21-40 degrees of flaps) |
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| Calibrated Airspeed - The airspeed indicator reading corrected for instrument and position error. KCAS is calibrated airspeed expressed in Knots. |
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| Indicated Airspeed - The airspeed indicator reading as installed in the airplane. KIAS is indicated airspeed expressed in knots. |
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| Calibrated Mach Number - The Machmeter reading corected for instrument and position error. |
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| Indicated Mach Number - the Machmeter reading as installed in the airplane. |
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| Maneuvering Speed - Va is the highest speed that full aileron and rudder control can be applied without over-stressing the aircraft, or the speed at which the aircraft will stall with the load factor of 3.0 g's at maximum gross weight, whichever is less. |
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| Liftoff Speed - The actual speed of the aircraft at liftoff. |
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| is the stalling speed in the landing configuration. |
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| is the stalling speed in the appropriate gear/flap configuration. |
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| Minimum Control Speed, Air - The minimum flight speed at which the airplane is controllable with 5 degrees of bank when one engine suddenly becomes inoperative and the remaining engine is operating at takeoff thrust. |
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| Minimum Control Speed, Ground - The mimimum speed on the ground at which control can be maintained using aerodynamic controls alone, when one engine suddenly becomes inoperative and the remaining engine is operating at takeoff thrust. |
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| Critical Engine Failure Speed - The speed at which, due to engine failure, the pilot is assumed to elect to stop or continue the takeoff. If engine failure occurs at V1 the distance to continue the takeoff to 35 feet above the runway surface will be equal to the distance to bring the airplane to a full stop. V1 must not be less than the critical mimimum control speed (Vmcg) or greater than the rotation speed (Vr). |
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| Rotation Speed - The speed at which rotation is intiated during takeoff to attain V2 at or before a height of 35 feet above the runway surface. |
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| Takeoff Safety Speed - The actual speed at 35 feet above the runway surface as demonstrated in flight during single-engine takeoff. V2 must not be less than 1.2 times the stalling speed or less than 1.1 times the air minimum control speed (Vmca), or less than rotation speed (Vr) plus an increment in speed attained prior to reaching a 35-foot height above the runway surface. |
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