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8 answers

top turns clock wise
tail turns counter clock wise

2007-02-24 08:59:32 · answer #1 · answered by duster 6 · 0 0

The guy above me did an outstanding job with the main rotor directions but the tail rotor directions I don't think was answered quite like you had in mind so here goes. All tail rotor blades except for one helicopter have tail rotor blade that turn in such a way as to have the tail rotor moving up in the front of the tail rotor disk. So as the blade moves UP as it approaches the cabin of the helicopter and Down as it moves away from the cabin of the helicopter. So depending on how you look at it is the direction is rotates. Lets say you always stand on the right side of a helicopter to look at the tail rotor, in that case all tail rotors will rotate counter-clockwise. The one exception I was talking about is the Robinson R-22. It rotates in the other direction because Mr. Robinson, from what I have heard all though I don't know if it is true or not did not want to increase the weight in the tail by adding the necessary gearing to change the direction. Like I said I don't know if that is true.

The reason they rotate in the direction I described above is that as the air moves down through the main rotor system the tail rotor will be moving upward through the downwash thus increasing the airspeed over the tail rotor and making it more efficient. Hope this helped.

2007-02-24 12:02:12 · answer #2 · answered by kb3hmj 3 · 1 0

Seen from the top main rotor turns counter-clockwise in American helicopters and aircraft produced by some companies that at the beginning started building American models on license, like Agusta and Westland (today are the same company, hold by Italian Finmeccanica), in the rest of the world helicopters main rotors turn clockwise, actually "rest of the world" mean France, Germany and Russia, so Mil, Aerospatiale, MBB(today MBB and Aerospatiale funded in Eurocopter)......... a other few builders....PZL(Polish).
Kamov is famous for use traditionally 2 counter-rotating coaxial rotors.
Of course I mean the nation of production, not the user, so Eurocopters helicopters used by USCG have the rotor turning like all Eurocopters...and American UH-1 or CH-53 used in Germany are like others American helicopters.....
About the tail rotor the question is also more complex...for example Agusta helicopters don't have the tail rotors always on the same side of the tail....for example A109, A129, EH101 have tail rotor on the left side of the tail (like Sea king, Ch-53, but also Mil-24 "Hind", Ah-64 "Apache" and Md-500) while AW139 has tail rotor on the right side of the tail, like UH-1 or Eurocopter Puma for example...this means that the tail rotor placed right or left is not related to the main rotor turning direction.

2007-02-24 11:29:54 · answer #3 · answered by sparviero 6 · 2 0

sparviro is 100% correct. As a pilot going from a UH-! to a Eurocopter with the rotor taking off or land requires the rudder peddles to be reversed .

2015-04-24 02:16:35 · answer #4 · answered by Richard 1 · 0 0

When standing at clearance point,and when seen up main rotor turns clockwise and tail rotors anticlockwise in majority.

2007-02-24 14:20:46 · answer #5 · answered by Rafik s 2 · 0 0

tail rotor better known as anti-torque. the helicopter has 3 controls. collective pitch, cyclic, and rudder peddles..the anti-torque controls yaw right or left , collective pitch adjust rise or decent ,cyclic control angling blades nose up or down

2007-02-25 11:37:16 · answer #6 · answered by abstact_illusionist 1 · 0 0

it turns in a circle

2007-02-24 11:47:53 · answer #7 · answered by 0000000000000000 2 · 0 3

it depends on the helicopter..........

2007-02-24 22:45:40 · answer #8 · answered by Anonymous · 0 0

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