uplock

Gear retaining device

A mechanism that secures an aircraft's landing gear in the retracted position during flight.

The uplock holds wheels and struts firmly in their bays until the pilot initiates gear extension: The uplock failed to release, leaving the gear stuck in the up position.

mechanism

latch

Door-securing catch

hook · catch · retention · toggle · lever · actuator · clamp · fastener · bolt · ratchet

aviation

landing gear

Aircraft ground support apparatus

stowage · gear lever · cockpit · hydraulics · actuator · pneumatics · emergency release · airframe · maintenance · pilot

Opposites
vertical position secured

uplockunlocked

Not fastened shut

release mechanism

Family

up, lock, locked, unlock, unlocked, locking, unlocking, relock, relocked

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G