Originally Posted by
cattletruck
But I think the underlying issue is that the current helicopter floatation system is woefully inadequate.
In this instance the floats deployed but the ship sank. In NYC the floats deployed but the ship rolled over inverted.
No surprise that NYC turned turtle given the forward speed and descent rate. I can't think of a helicopter type that consistently remains upright in ditchings...AW139, B214ST, S76 etc etc, they've all turned turtle in relatively calm seas for whatever reasons.