Well, a nice esoteric question: in the thread
http://www.pprune.org/rotorheads/336...ml#post4607973 (sorry for not using the presumably rather good permalink...beyond me.) there is a picture of a helicopter bearing the number "13" and carrying a most peculiar set of skids. The skids look as if they are deliberately designed to prevent them snagging on things: but what? And if my assumption is incorrect, why are the skids so designed?
david