Last Updated：2025/11/25

Describing a helicopter's shrouded tail rotor, essentially a ducted fan, intended to counteract the torque of the main rotor.

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fan-in-fin

Source Word

fan-in-fin

Adjective

not-comparable

Describing a helicopter's shrouded tail rotor, essentially a ducted fan, intended to counteract the torque of the main rotor.

Japanese Meaning

主ローターの反トルクを打ち消すために設けられた、覆い付き尾部ローター（実質的にはダクテッドファン）を意味する。

The fan-in-fin tail rotor effectively counteracts the main rotor's torque while reducing noise and improving safety during low-altitude operations.

ダクテッドファン式の尾部ローターは、メインローターのトルクを効果的に相殺し、騒音を低減して低高度での安全性を高めます。

Sense（1）

Describing a helicopter's shrouded tail rotor, essentially a ducted fan, intended to counteract the torque of the main rotor.