V Speeds

V SO

Bottom of White Arc, Stall speed in landing configuration (Stuff Out)

V S1

Bottom of Green Arc, Stall speed in Specified configuration, No Flaps (Stuff In)

V A

Maneuvering Speed, Not indicated on ASI. the maximum speed at which an aircraft can make full, abrupt flight control movements (like pulling back hard on the elevator) without breaking the plane

V x

Angle of Climb, Greatest gain of Altitude in shortest distance

V y

Best rate of climb, Greatest Altitude gain in shortest amount of time

V FE

Top of White Arc, Maximum flaps extended speed

V NO

Top of Green / Bottom Yellow Arc, Max Structural cruising speed, (Max Normal Operating Limit)

V NE

Red Line, Never Exceed

White Arc

Flap Operating Range

Green Arc

Normal Operating Range

Yellow Arc

Caution Range, Only to be used in Smooth Air, Still risks structural damage

V LO

Landing gear Operating speed, Max Speed for extendable Landing gear to be raised or lowered

V LE

Landed Gear Extended speed, Maximum speed while landing gear is extended, Usually the same as V LO

V MC

Minimum Controllable Speed in a twin engine with one Inoperative engine (Not indicated on ASI)