In dictionaries:
screw propellers
Contra-rotating propellers
Aircraft equipped with contra-rotating propellers coaxial contra-rotating propellers, or high-speed propellers, apply the maximum power of usually a single piston engine or turboprop engine to drive a pair of coaxial propellers in contra-rotation.
Counter-rotating propellers
propellers which turn in opposite directions to each other.
Dowty Propellers
a British engineering company based in Brockworth, Gloucestershire that specialises in the manufacture, repair and overhaul of propellers and propeller components for customers around the world.
paramecium propellers
boat propellers
more...