| V1 |
Take-off decision speed |
|
Vmo/Mmo |
Mach, Maximum Operating limit speed |
| V2 |
Take-off safety speed (minimum) |
|
Vmu |
Minimum Unstick speed (liftoff) |
| Va |
Design maneuvering speed |
|
Vne |
Never Exceed speed |
| Vb |
Design speed for maximum gust |
|
Vno |
Maximum structural cruising speed |
| Vc |
Design Cruising speed |
|
Vpw |
Pilot Window open speed |
| Vd |
Design Diving speed |
|
Vr |
Rotation speed |
| Vdf/Mdf |
Demonstrated Flight diving speed |
|
Vref |
Reference speed |
| Vf |
Design Flap speed |
|
Vs |
Stalling speed |
| Vfc/Mfc |
Maximum speed for stability Characteristics |
|
Vs1 |
Stalling speed in a specified configuration |
| Vfe |
Maximum Flap Extended speed |
|
Vso |
Stalling speed in the landing configuration |
| Vfo |
Maximum Flap Operating speed |
|
Vsse |
Safe Single-Engine speed (render an engine inop) |
| Vh |
Maximum speed in level flight with maximum continuous power |
|
Vtos |
Take-Off Safety speed |
| Vle |
Maximum Landing gear Extended speed |
|
Vtoss |
Take-Off Safety speed category "A" rotorcraft |
| Vlo |
Maximum Landing gear Operating speed |
|
Vww |
Windshield Wiper operating speed |
| Vlof |
Liftoff speed |
|
Vx |
Best angle of climb speed |
| Vmc |
Minimum Control speed |
|
Vxse |
Best angle of climb speed, Single Engine |
| Vmca |
Air Minimum Control speed |
|
Vy |
Best rate of climb speed |
| Vmcg |
Ground Minimum Control speed |
|
Vyse |
Best rate of climb speed, Single Engine |
