Way back when I was in ground school we saw an old video that showed a model of a 47 in a windtunnel. They were showing the helicopter in various phases of flight to show how the air flows around/through the rotor system. During the segment on autorotation, the smoke failed to penetrate the rotor disk. For those in the know, how would the co-axial rotor system work in autorotation ?? Or would it even work ?? I tried asking the one person I met who flew a Kamov 32, and he told me they didn't practice dual engine failures.
Cheers
Randy_G
