noun
tailplane; horizontal stabilizer
Technical term in aviation; refers to the small wing at the tail of an aircraft that provides stability in pitch.
水平尾翼は機体の安定に重要な役割を果たす。
The horizontal stabilizer plays an important role in the stability of the aircraft.
垂直尾翼 is the vertical stabilizer (fin), while 水平尾翼 is the horizontal stabilizer (tailplane).
Compound of 水平 (horizontal) and 尾翼 (tail wing), a straightforward technical term.