How do the rotors turn on a co-axial rotor system?
- They counter-rotate on a common shaft.
- Both rotate in the same direction on a common shaft.
- They counter-rotate on separate shafts.
Explanation from PART66Online
A co-axial rotor system has two main rotors mounted one above the other on concentric (separate, nested) shafts turning in opposite directions. The counter-rotation cancels torque so no tail rotor is needed. They are not on a single common shaft and do not turn the same way, otherwise their torques would add instead of cancelling.
H
harbhla asked · 14 Sep 2012
Ithink they counter rotates on seprate shafts
Community Comments (4)
P
PART66Online
23 Sep 2012
I also think so, changed to "separate shafts".
B
Bruno Santos
23 Mar 2017
If you look at helicopter Kamov is co axial and counter rotates on same shaft
P
PART66Online
23 Mar 2017
Bruno, maybe you mean on same axis but different shafts?
J
Jordi
1 Sep 2021
the correct answer is that generally and not in Kamov in particular as Bruno mentions,is that they counter rotate on seperate shafts.
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