Our heavyweight helicopter equal in the world does not have
In Rostov started production of the most load-lifting rotary-wing car The Russian holding «Helicopt[...]
The shaft axis
The most obvious, and least useful, of these axes is the shaft axis on which the rotor head turns. An observer riding on the shaft axis could see flapping, dragging and feathering taking place simultaneously, but some of these motions could disappear at certain relationships between the shaft axis and the other two axes.
