Yes they do - it's just that you can't see them unless the ship is in 'dry dock. They're powered by HUGE engines.
because they can explode
Precision Propellers was created in 1979.
Lang Propellers was created in 1913.
Tennessee Propellers was created in 1981.
Through pipelines and with tankers and supertankers
3 Propellers were on the famous RMS TITANIC!
De Havilland Propellers was created in 1935.
Some airplanes have had up to 8 propellers.
No. Gliders, jets and rocket-propelled aircraft do not have propellers.
Generally speaking there are 4 propellers. Two of them are crossed over each other that form the main propellers, and the other two are at the rear.
The propellers on the plane were 8.5 feet long
The Helicopter with the long propellers creates more list and has to do less rotations, and use less power than the one with short proplellers. Therefore Helicopter with the long propellers will hover and stay in air longer than the one with short propellers.