Last Updated：2025/12/01

(aviation) A mechanical aerodynamic wedge that prevents the ventral airstair of an aircraft from being lowered during flight.

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Cooper vane

Source Word

Cooper vane

Noun

(aviation) A mechanical aerodynamic wedge that prevents the ventral airstair of an aircraft from being lowered during flight.

Japanese Meaning

航空機の飛行中に、機体下部のエアステアが下ろされるのを防ぐための、機械式のエアロダイナミックウェッジ

整備班は離陸前に、飛行中に機体下部の搭乗用階段が降りるのを防ぐ機械式の空力ウェッジを点検し、階段が飛行中に展開されないことを確認した。

Sense（1）

(aviation) A mechanical aerodynamic wedge that prevents the ventral airstair of an aircraft from being lowered during flight.

Cooper vanes

（ plural ）