Who invented the propellor?

Answer 1

It was INVENTED way before our time. but the screw propeller was patented in 1827 by Josef Russel. There have been many inventions before, just think of Archimedes's screw! Ancient Egyptians, Leonardo DaVinci, even the British have all experimented. I hope this website can help you, it is also my source :P.

http://en.wikipedia.org/wiki/Propeller

Disclaimer: I already knew about Archimedes's screw and knew Leonardo DaVinci was experimenting with it.

Answer 2

The principle employed in using a screw propeller is used in single oar sculling, a practice with a history of unknown length. It is part of the skill of propelling a Venetian gondola but was used in a less refined way in other parts of Europe and probably elsewhere. For example, propelling a Canadian canoe with a single paddle involves a related but not identical technique (see the section on "j-stroke" under canoe).

In sculling, a single blade is moved through an arc, from side to side taking care to keep presenting the blade to the water at the effective angle. The innovation introduced with the screw propeller was the extension of that arc through more than 360° by attaching the blade to a rotating shaft. In practice, there has to be more than one blade so as to balance the forces involved.

The first screw propeller to be added to an engine was installed by James Watt in Birmingham, England. He used it with his steam engine although the screw propeller's origins can be traced to Egyptians by way of Leonardo da Vinci. The third century BC Greek philosopher, Archimedes developed a related concept with a view to moving water and European crusaders found windmills in the Middle East in the 1090s CE. The first screw propeller to be powered by a petrol engine, fitted to a small boat (now known as a powerboat) was installed by Frederick Lanchester, also from Birmingham. This was tested in Oxford.

The airfoil (aerofoil) shape of modern aircraft propellers was pioneered by the Santos Dumont. Realizing a propeller was a rotating wing, they applied their lessons in wing design to the cross-section of bamboo propellers for their 14 bis.

Answer 3

The first screw propellor was invented by the ancient Egpytians! I hope this helps!

Answer 4

Archimedes

Answer 5

the propeller as we know it today was invented by Alberto Santos Dumont. Earlier versions, such as the screw propeller, have been traced back to the Egyptians.