half-cock position

напівзведене положення; запобіжний звід / відбезпечник, безпечник (про курок тощо)

half cock notch

half colonel / half-bird

half-and-half bearing

cock (the hammer of a firearm)

compression relief cock

put the hammer at full cock

cock is at full bent (the)

launching position (missile position)

changeover from travelling position to fire position

position and navigation unit / position navigation unit (PNU)

in position / in-position

half-duplex channel

half-moon recess

half-silhouette target

deuce and a half