回かい頭とう

か

い

と

う

Meanings

1

noun, noun or participle which takes 'suru', intransitive verb

changing course; turning

Primarily used for ships and aircraft altering their heading. The noun form is common, and 回頭する is used as an intransitive verb.

入にゅう

角かく

度ど

を

調ちょう

整せい

する

ため

、

機き

体たい

を

回かい

頭とう

さ

せ

た

。

The pilot turned the aircraft to adjust the approach angle to the runway.

転てん回かい
転回 is a more general term for turning or revolving, used for vehicles, dance, or abstract changes, while 回頭 is specifically for ships and aircraft changing course.
方ほう向こう転てん換かん
方向転換 is a broader expression for changing direction in various contexts, not limited to nautical or aviation use.

Compound of 回 (turn, revolve) and 頭 (head), literally 'turn the head', referring to changing the heading of a vessel or aircraft.