contrarotation

Mane (Îngilîzî)

1. Rotation in a contrary direction.
2. The use of a single piston or turboprop engine to drive two propellers in opposite rotation.

Hevwate

inversion

invert

reversal

reverse

backrun

counterrotation

derotation

back run

reverse rotation

back turn

reversing rotation

antidromy

Werger

controrotazione

Etîmolojî (Îngilîzî)

From contra- + rotation.