constant-speed propeller

negative thrust propeller / negative-thrust propeller

propeller speed controller

supersonic speed (exceeds speed of sound / Mach 1)

variable-speed with speed control

instantaneous vertical speed indicator / instantaneous vertical-speed indicator (IVSI)

Nr gauge (Nr = speed of rotation) / rotor speed sensor

Motor PWM speed separated from PID speed

constant pressure

constant-bearing guidance / homing / navigation

CV joint (constant velocity)

permanent / constant / standing combat readiness

constant clearance

constant velocity universal joint

constant-area orifice

constant-flow lubrication

constant-horsepower variable-torque output

constant-pressure cycle

constant-rate suspension

correction for cross component of equivalent constant wind

constant-volume combustion

constant deviation

constant pressure altitude

constant pressure surface

constant temperature

constant-level balloon

constant-pressure air

electromagnetic time constant

gas constant

cell averaging constant false alarm rate

moving target indicator constant false alarm rate

zero-crossing constant false alarm rate

constant false alarm rate (CFAR)