CLEARANCE: Above Top Secret
- Mar 11, 2006
- Reaction score
SAustin16 said:... The ducted fans could not auto-rotate. The pilot had no "Plan B".
That's right, but that's imminent to more or less ALL designs with ducted fans, like, for example,
the Nord 500 and derivatives, or several Hiller designs and, at least for take-off and landing for
the Coleopters, too. AFAIK, all those designs were multi-engined and the fans were driven via
cross-coupled shafts, so at least the failue of an engine, not necessarily had fatal results. The
failure of the gear box, or a fan of course would have, but if you look at the helicopter, it's more
or less the same, I think, with regards to safety.