Saturday, October 19, 2019

HELICOPTER

  1. Helicopter
  2. This is a flying machine with antitoque and main rotor. It's ability to fly depends on the power of its engine, the angle of attack and inclination when it's rotor turns with the blades. 
Helicopter is a complex machine built-up by several mechanism for its control. http://www.bing.com/search?q=youtube&PC=IS25http://www.bing.com/search?q=google&PC=IS25

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