off-field landing

combination field and field-off duty uniform

off-route (off route)

off-design / off design

lift-off / lift off

on-off keying; on/off keying (OOK)

field officer (field-grade officer / senior officer)

combat field pack, field pack

air support field pack, field pack air support, airborne / para (air support) / Pathfinder Bergen

short take off and landing (STOL)

vertical take off and landing (VTOL)

conventional take-off and landing (CTOL) aircraft

short take-off and landing (STOL) aircraft

vertical take-off and landing (VTOL) aircraft

landing and take-off cycle (LTO)

reference emissions landing and take-off cycle

reference landing and take-off cycle

off-runway landing

short take-off and landing (STOL) port

advanced landing field

advanced landing field party

blast-off

commercial off the shelf

company (grade) officers (Co Off)

cooking off

drop-off point (DOP)

dust-off

duty, off duty

fend off enemy's a advance

Fissile Material Cut-Off Treaty (FMCT)

government off-the-shelf (item)

hands off!

high pay-off target / high-payoff target (HPT)