Propeller | Wikipedia audio article
Channel: wikipedia tts
Date: 04/10/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Propeller


00:00:32 1 History
00:00:41 1.1 Early developments
00:06:30 1.2 Screw propellers
00:10:36 1.3 Shaftless propellers
00:11:05 1.4 Aircraft propellers
00:12:30 2 Propeller theory
00:12:39 2.1 History
00:13:53 2.2 Theory of operation
00:18:43 2.3 Marine propeller cavitation
00:22:08 2.4 Forces acting on a foil
00:24:25 2.5 Propeller thrust Equation
00:25:09 2.5.1 Single blade
00:25:18 2.5.2 Thrust and torque
00:35:55 2.6 Actual performance
00:42:16 3 Types of marine propellers
00:44:07 3.1 Controllable-pitch propeller
00:44:35 3.2 Skewback propeller
00:45:03 3.3 Modular propeller
00:47:09 3.4 Voith Schneider propeller
00:47:18 4 Protection of small engines
00:47:48 5 Propeller variations
00:48:34 5.1 Cleaver
00:49:01 6 See also
00:49:23 6.1 Propeller characteristics
00:52:16 6.2 Propeller phenomena
00:52:26 6.3 Other
00:53:04 6.4 Materials and manufacture
00:53:18 7 Notes
00:53:35 8 External links
00:53:53 Other
00:55:13 Materials and manufacture
00:55:27 Notes
00:55:35 External links



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SUMMARY
=======
A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the airfoil-shaped blades, and a fluid (such as air or water) is accelerated by the pressure difference. Propeller dynamics, like those of aircraft wings, can be modelled by Bernoulli's principle and Newton's third law. Most marine propellers are screw propellers with helical blades rotating around an approximately horizontal axis or propeller shaft.