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Subject: Contra / Coaxial rotating Helicopters.
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prashantakerkarUser is Offline
JH Newbie
JH Newbie

05/10/2013 9:00 PM  
http://en.wikipedia.org/wiki/Helicopter_rotor http://en.wikipedia.org/wiki/Contra-rotating http://en.wikipedia.org/wiki/Contra-rotating_propellers http://en.wikipedia.org/wiki/Coaxial_rotors http://www.youtube.com/watch?v=VZ8BUNJYtOo http://www.maxxprod.com/mpi/mpi-266.html‎ http://dspace.mit.edu/handle/1721.1/65309‎ http://dspace.mit.edu/handle/1721.1/61906 I want to discuss the advantages and disadvantages of implementing Contra rotating helicopters design over the conventional main rotor system in terms of manufacturing cost, efficiency, power, speed etc The Design complexity will increase if more than two rotors in opposite directions are to be driven in odd and even configuration. i.e. 3,5,7 etc Odd 4,6,8 etc Even Increasing the Number of Rotors (3,4,5,6,7,8) can affect the Helicopter speed ?. Will 3,5,7 etc Odd configuration also work ? OR Only 2,4,6,8 etc Even Configuration work ? Thanks & Regards, Prashant S Akerkar
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Forums > JH Alternate Forum > General Helicopter Discussion > Contra / Coaxial rotating Helicopters.

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