gear speed decreaser

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

idler direct speed gear

direct speed gear

fourth and fifth speed gear synchronizer

landing gear placard speed

third-speed gear

camshaft gear (timing gear)

gear reduction unit / gear-reduction unit

apparent speed

average speed

blade speed

convoy speed

critical speed

cross-country speed

endurance speed

exhaust speed

full speed (naut.)

group transit speed

high-speed antiradiation missile (HARM)

high-speed boat

hypersonic (speed)

lightweight high-speed antisubmarine torpedo

maximum road speed

maximum speed

operating speed

output speed

relative speed

safe speed