At first glance there is nothing visible that appears to be capable of generating forward thrust in a helicopter. What are the laws of aerodynamics that govern the forward motion of a helicopter? Is there a simple way of explaining how a helicopter moves forward?
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Well I guess the angle the rotor makes with the fuselage, what you call the "tilt" can be adjusted to generate that forward thrust by resolving the lift horizontally. Have I got it right? ... and thanks a lot for your response!
Yes. Basically the more forward "tilt" the blades have, the more forward thrust that can be generated. However, more thrust means that the blades would be generating less lift.
I also thought so. The angle the top rotor makes with the fuselage gives it a forward thrust I guess. Thanks a lot for taking time off to respond! :)
Thank you very much for your explanation. :)