What are V-Speeds????

Question

What are V-Speeds????

Answer 1

V A  means design maneuvering speed.

V B  means design speed for maximum gust intensity.

V C  means design cruising speed.

V D  means design diving speed.

V DF/ M DF  means demonstrated flight diving speed.

V EF  means the speed at which the critical engine is assumed to fail during takeoff.

V F  means design flap speed.

V FC/ M FC  means maximum speed for stability characteristics.

V FE  means maximum flap extended speed.

V FTO  means final takeoff speed.

V H  means maximum speed in level flight with maximum continuous power.

V LE  means maximum landing gear extended speed.

V LO  means maximum landing gear operating speed.

V LOF  means lift-off speed.

V MC  means minimum control speed with the critical engine inoperative.

V MO/ M MO  means maximum operating limit speed.

V MU  means minimum unstick speed.

V NE  means never-exceed speed.

V NO  means maximum structural cruising speed.

V R  means rotation speed.

V REF  means reference landing speed.

V S  means the stalling speed or the minimum steady flight speed at which the airplane is controllable.

V S0  means the stalling speed or the minimum steady flight speed in the landing configuration.

V S1  means the stalling speed or the minimum steady flight speed obtained in a specific configuration.

V SR  means reference stall speed.

V SRO  means reference stall speed in the landing configuration.

V SR1  means reference stall speed in a specific configuration.

V SW  means speed at which onset of natural or artificial stall warning occurs.

VTOSS  means takeoff safety speed for Category A rotorcraft.

V X  means speed for best angle of climb.

V Y  means speed for best rate of climb.

V 1  means the maximum speed in the takeoff at which the pilot must take the first action (e.g., apply brakes, reduce thrust, deploy speed brakes) to stop the airplane within the accelerate-stop distance. V1  also means the minimum speed in the takeoff, following a failure of the critical engine at VEF, at which the pilot can continue the takeoff and achieve the required height above the takeoff surface within the takeoff distance.

V 2  means takeoff safety speed.

V 2min  means minimum takeoff safety speed.

Answer 2

Velocity-speeds

  standard terms used to define airspeeds important or useful to the operation of aircraft......or whatever plane

Answer 3

Common speeds that are required to be known, or simply good to know about the aircraft that you are operating.  You will come across them so often in training, that they abbreviate them to make it easier for you to deal with them. Almost anything that has a max or min speed on an airplane has an associated V speed to go with it. From max landing gear extension to mincontrollable airspeed single engine (it gets it's own marking on the ASI as a blue line)  climb rates, you name it... I am not going to list them here.. because if you need them, then you need them ALL... which is too many. You will find as you check out or qual on aircraft, that as they become more complex you will be required to not only learn more.. but memorize more.. and one of the basics are the speeds, weights, pressures etc... hard numbers that you can trace directly back to performance on the airplane

V speeds are something you can expect to recite from memory on your oral for any aircraft check out.