maximum speed of level flight

minimum speed of level flight

maximum take-off weight / maximum takeoff weight (MTOW)

maximum road speed

maximum speed

maximum ground speed for water landing with floats inflated

maximum recorded speed

Speed maximum

maximum noise level

maximum permissible noise level

maximum tone corrected perceived noise level

maximum-wind level

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

depot maintenance (beyond O and I level activities, performed in an industrial-type facility) / D-level maintenance

surveyor's level (surveying level, tbc)

flight speed

high speed flight (HSF)

assigned flight level

level flight

level flight noise requirements

level flight time (LFT)

low-level flight

minimum usable flight level

flight level

level-flight envelope

in-flight level calibration

flight restriction zone / flight restricted zone (FRZ)

maximum effective range

maximum ordinate