Other V-speeds
Some of these V-speeds are specific to particular types of aircraft and are not defined by regulations.
| V-speed designator | Description |
|---|---|
| VBE | Best endurance speed – the speed that gives the greatest airborne time for fuel consumed. |
| VBG | Best power-off glide speed – the speed that provides maximum lift-to-drag ratio and thus the greatest gliding distance available. |
| VBR | Best range speed – the speed that gives the greatest range for fuel consumed - often identical to Vmd. |
| VFS | Final segment of a departure with one powerplant failed. |
| Vimd | Minimum drag |
| Vimp | Minimum power |
| VLLO | Maximum landing light operating speed – for aircraft with retractable landing lights. |
| Vmbe | Maximum brake energy speed |
| Vmd | Minimum drag (per lift) - often identical to VBR. (alternatively same as Vimd) |
| Vmin | Minimum speed for instrument flight (IFR) for helicopters |
| Vmp | Minimum power |
| Vp | Aquaplaning speed |
| VPD | Maximum speed at which whole-aircraft parachute deployment has been demonstrated |
| Vra | Rough air speed (turbulence penetration speed). |
| VSL | stall speed in a specific configuration |
| Vs1g | stall speed at 1g load factor |
| Vsse | Safe single engine speed |
| Vt | Threshold speed |
| VTO | Take-off speed. (see also VLOF) |
| Vtocs | Take-off climbout speed (helicopters) |
| Vtos | Minimum speed for a positive rate of climb with one engine inoperative |
| Vtmax | Max threshold speed |
| Vwo | Maximum window or canopy open operating speed |
| VXSE | Best angle of climb speed with a single operating engine in a light, twin-engine aircraft – the speed that provides the most altitude gain per unit of horizontal distance following an engine failure. |
| VYSE | Best rate of climb speed with a single operating engine in a light, twin-engine aircraft – the speed that provides the most altitude gain per unit of time following an engine failure. |
| VZRC | Zero rate of climb speed in a twin-engine aircraft |
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