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Definition of Fan-in-fin
1. Adjective. (non-gloss definition Describing a helicopter's shrouded tail rotor, essentially a ducted fan, intended to counteract the torque of the main rotor.) ¹
¹ Source: wiktionary.com
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1. Adjective. (non-gloss definition Describing a helicopter's shrouded tail rotor, essentially a ducted fan, intended to counteract the torque of the main rotor.) ¹
¹ Source: wiktionary.com