minimum speed of level flight

minimum usable flight level

maximum speed of level flight

minimum supply level

minimum risk level (MRL)

minimum flight altitude

minimum flight weight

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

flight level

level-flight envelope

in-flight level calibration

minimum military requirements (MMR)

minimum pressure drop

use of minimum force

minimum safety distance (MSD)

minimum off-route altitude

minimum flow valve

minimum

minimum deterrence

minimum operational performance standards