час горизонтального польоту
depot maintenance (beyond O and I level activities, performed in an industrial-type facility) / D-level maintenance
surveyor's level (surveying level, tbc)
assigned flight level
level flight
level flight noise requirements
low-level flight
maximum speed of level flight
minimum speed of level flight
minimum usable flight level
flight level
level-flight envelope
in-flight level calibration
zone standard time (zone time) (ZST)
time to climb / climb time
time-gain control / gain time control
real time kinematic / real-time kinematic (RTK)
takeoff time (T time)
Date and time from real time clock
Real time clock date / time
Driven Ammunition, Reduced Time of flight (DART)
time of flight (TOF)
active flight time
differential effect on time of flight
zero time-of-flight weapon
flight time
agree the time and direction of flight
Estimate of flight time remaning
Flight Controller Loop Time
flight restriction zone / flight restricted zone (FRZ)
alert level
barrel bore wear level
base level assessment