fan-in-fin
Adjective
Meaning
fan-in-fin (not comparable)
Describing a helicopter's shrouded tail rotor, essentially a ducted fan, intended to counteract the torque of the main rotor.
Adjective
fan-in-fin (not comparable)
Describing a helicopter's shrouded tail rotor, essentially a ducted fan, intended to counteract the torque of the main rotor.