V Speeds Flashcards
Vso
Calibrated power-off stalling speed or the minimum steady flight speed at which the aircraft is controllable in the landing configuration.
V-S or V-S1
Calibrated power-off stalling speed or the minimum steady flight speed at which the aircraft is controllable in a specified configuration.
V-FE
The highest speed permissible with the wing flaps in a prescribed extended position. This is because of the air loads imposed on the structure of the flaps.
V-NO
The maximum speed for normal operation or the maximum structural cruising speed. This is the speed at which exceeding the load limit factor may cause permanent damage to the aircraft structure.
V-NE
The speed which should never be exceeded.
V-A
Design maneuvering speed. This is the maximum speed at which the limit load can be imposed by gusts or full deflection of the control surfaces without causing structural damage.
V-R
Speed at which the rotation of the aircraft is initiated to takeoff attitude.
V-LOF
Lift-off speed. The speed at which the aircraft first becomes airborne.
V-CLMB
Normal Climb Speed- provides best engine cooling.
V-X
The speed at which the aircraft will obtain the highest altitude in a given horizontal distance. This best angle of climb speed normally increases slightly with altitude.
V-Y
The speed at which the aircraft will obtain the maximum increase in altitude per unit of time. This best rate of climb speed normally decreases slightly with altitiude.
V-LE
The maximum speed at which the aircraft can safely be flown with the landing gear extended. This is a problem involving stability and conrtollability.
V-BG or V-L/D Max
Best Power-Off Glide Speed. Provides maximum Lift to Drag Ratio for best gliding performance.
V-LO
The maximum speed at which the landing gear can be safely extended or retracted. This is a problem involving the air loads imposed on the operating mechanism during extension or retraction of the gear.
