I am involved designing a helicopter of the notar type and I would like to know more about the effectiveness of using the Coanda effect to counteract rotor torque. I have looked at how Mcdonald Douglas use the Coanda effect and it seems to be rather complex component wise. Would the Coanda effect work with larger volumes of low pressure air. The only helicopter that I can find that uses this concept is the Mcdonald Douglas, are there any others?
Any help much appreciated.
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