1.
aileron; secondary wing surface
A hinged control surface on the trailing edge of an airplane wing, used to control the aircraft's roll. Ailerons on the left and right wings move in opposite directions to tilt the plane.
副翼を操作して機体を傾ける。
Operate the ailerons to tilt the aircraft.
左の副翼を上げると機体は左に傾く。
When the left aileron is raised, the aircraft tilts to the left.
事故調査の結果、副翼の故障が墜落の原因であったことが判明した。
The accident investigation revealed that a malfunction of the ailerons was the cause of the crash.
A compound of 副 (secondary/auxiliary) and 翼 (wing). The Japanese term literally means "auxiliary wing," reflecting that ailerons are movable surfaces attached to the main wing.
COMMON COLLOCATIONS:
- 副翼を操作する: operate the ailerons
- 副翼の故障: aileron malfunction
- 左右の副翼: left and right ailerons
SIMILAR WORDS:
- 主翼: main wing (the primary wings of an aircraft)
- 尾翼: tail wing; empennage (the tail section of an aircraft)
- 方向舵: rudder (controls yaw, the left-right rotation)
- 昇降舵: elevator (controls pitch, the nose up/down rotation)
TECHNICAL NOTE:
Ailerons work in pairs: when one goes up, the other goes down. The wing with the lowered aileron generates more lift and rises, while the wing with the raised aileron generates less lift and drops, causing the aircraft to roll.