Total time spent flying

total station (TS) / total station theodolite (TST)

spent shell casing

spent bullet

spent case

total airframe flying hours

accident-free flying / mishap-free flying

mishap-free flying / accident-free flying

low flying aircraft / low-flying aircraft

Fly time total

Total armed time

Total time craft has been armed on current power cycle

Total time the craft has been armed in the current power cycle

Total time the craft has been powered on

mean time between repairs (flying hours)

time to first overhaul (flying hours)

noncombat flying time

nonoperational flying time

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

total air defense

total asset visibility (TAV)

total dose

total mission effectiveness (TME)

total mobilization

total obligational authority (TOA)

total obligational authority index

total revenue