full-speed trial of engine

air trial

trial

US Army Trial Defense Service

ditching trial

k-trial

trial-shot correction

firing trial

full motion full mission flight simulator

engine capacity / engine power, engine output

full speed (naut.)

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

full authority digital engine control (FADEC)

full engine acceleration

decrease speed of the engine

engine idling speed adjusting screw

engine speed range

high engine speed

engine speed adjustor

engine idle speed

reaction engine / motor (jet engine)

rotary engine (Wankel engine)

engine ground run / engine test

engine oil reservoir / engine oil tank

airbreathing jet engine / ducted jet engine

extended range full bore (ERFB)

full admiral

full alert (posture)

full command (FULLCOM)