noun
navy aircraft; naval aircraft
Refers to aircraft operated by a navy, including carrier-based planes, patrol aircraft, and helicopters.
その海軍機は空母から発艦した。
The navy aircraft took off from the aircraft carrier.
海軍機が海上を哨戒飛行している。
A naval aircraft is patrolling over the sea.
艦載機 refers specifically to carrier-based aircraft, a subset of 海軍機.
Compound of 海軍 (navy) + 機 (aircraft).