Originally Posted by
cockney steve
re= float- measurement of liquid.
Helicopters have a poorer unpowered flying ability than fixed-wing...therefore it would seem a priority to design any such craft around an "Inherently safe" regime. Eliminate as many traps, "gotchas" and flaws at the design stage...together with good ergonomics, a safer aircraft should ensue.
Helicopters with lower disk loadings perform very well unpowered - it is
one of the upsides of the single engine soloution.
Regrettably complexity has unforseeable implications. Simplicity is hard to acheive - but worth it.