What happens if there a mechanical failure of the Helicopter ?
If the main rotor system is intact then is is possible for a Helicopter to `autorotate’ – like a sycamore seed – to a safe landing. It is a CAA requirement that Helicopters must be able to alight safely if there is a total engine failure. However, it is unlikely that a Helicopter can achieve a `glide angle’ of much over 4 to 1. In other words a helicopter at 500 feet above ground can only probably travel about 2000 feet. If there is main rotor blade or main gearbox failure, then the consequences are usually fatal.
