I was under the impression, from watching Discovery channel, that the US military had toyed with the concept (blow-off rotor blades) but scrapped it for impracticality. Wasn't aware civ makers had picked up the concept?
You mean "auto-rotation"? (counter rotation is a term that only applies to more than one propeller or rotor, else what is being "countered")Originally posted by gws226:
Why do you need ejector seats again? Doesn't you Bulgarian helicoptors have counter-rotation too?![]()