When I did the Kholgrub course I was on Wessex, a nice twin-engined helicopter. When winching, the aircraft would descend, so that in the event of a cable-cut the survivor only fell a few feet. At that time the Germans were using the Sycamore, a single-engine machine, and winched from a considerable height. When I told the staff I wasn't going, and explained why, I was allowed to go back with the ground party. Chicken maybe, but my blood-pressure thanked me for it. It's one thing to be hunted all night, quite another to put life and limb in the hands of a helicopter that the RAF had withdrawn some years earlier owing to its propensity to roll over when on the ground.