Origin of twin-screw
Examples from the Web for twin-screw
In twin-screw boats there are two distinct engines, one for each propeller.The Romance of War Inventions|Thomas W. Corbin
The twin-screw liner, Fruitlands,—do you really want the first?She Buildeth Her House|Will Comfort
The turbine, with the twin-screw propeller, develops from six to seven horse-power for every ton of machinery.
Not so the twin-screw ship; for on such ships the screws can be used for steering as well as propelling.Every-day Science: Volume VII. The Conquest of Time and Space|Henry Smith Williams
The steam-turbine and the twin-screw propeller have made rapid ocean travel possible.