Yes, a water screw.
Sometimes the propeller on a boat is called a screw & they used to be made of lead. So they would be found at the end of the propeller shaft.
there are a few twin rotor helicopters. The Chinook is possibly most famous.
may i know the other term of propeller blade particular in ship propeller There is no alternative term for "propeller blade", but the entire prop is sometimes called a screw.
Used as fasteners, a fan or ships propeller is a form of screw, etc.
you use the mini screwdriver that came with it and on the propeller should be a screw on top and you unscrew it and pop it of with the tool that came with the air hog and apply the new one and make sure its on tight and then screw the screw back in and then your done.
the screw
One who, or that which, propels., A contrivance for propelling a steam vessel, usually consisting of a screw placed in the stern under water, and made to revolve by an engine; a propeller wheel., A steamboat thus propelled; a screw steamer.
The same reason ships propellers are called screws, they kinda "screw" their way through the air/sea like an enormous wood screw.
Twin screw motor vessel.
Screw Ship. A vessel with a screw- type propeller, rather than a side-wheel or sail powered one.
The propeller on a submarine is properly called the screw. It's a multi-bladed hydrofoil that converts the rotational energy of the shaft to propulsion. Links can be found below for more information.