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A propeller on a submarine (which is called a screw, by the way) works to convert the rotational energy of the shaft into propulsion.
The screw is a hydrofoil with blades attached to a heavy central hub or boss. The blades are inclined to the plane of rotation. For forward motion, the screw rotates in a given direction, and the leading edge of the screw "bites" into the water ahead of the plane of rotation. This has the effect of pushing water backwards. The rest of the blade follows along and continues to push the water backward. When water is forced back, the submarine is forced forward, and this is a play out of the action-reaction chapter in a physics book.
A link can be found below for more information, and you can see a diagram or two, which will help greatly.
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∙ 13y ago
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Can a submarine move itself in space?
No. A submarine's propeller relies on the water around it for something to push against. As space is a vacuum, the propeller would have nothing to push against, ergo the submarine would have no thrust.
What is a submarine propeller?
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.
What type of vessel was powered by a hand cranked propeller when first used in combat in 1776?
A submarine.
What type of vessel was powered by a hand cranked propeller when first used in combat 1176?
A submarine
Does a boat propeller run when the boat is idle?
No, the propeller will only work if the engine is running.
How does a ship propeller work?
It propels.
How does aircraft propeller work?
the motor spins the propeller like a turbine. isn't it obvious, idiot .
How does a propeller work in a toy car?
It moves.
How does the airplane propeller work?
The curved shape of the propeller deflects airflow to it's rear. This is 'thrust' that propels an aircraft.
How many propellers does a submarine have?
Most modern submarines have one screw (which is the proper term for a propeller). Some of the really big ones have a pair of them, like the Russian submarine Kursk, for example. But the bulk of the designs incorporate a single screw.
How do guns work on planes without hitting propeller?
Where the gun fires through the propeller, the two are mechanically connected and timed so that the rounds will pass between the blades of the propeller.
Can a propeller work in space?
what do u think hell no
