JimL,
Thats good advice, thanks. Its roughly in line with what I was thinking.
We operate more than one type and any given type has more than one CAT A profile. The type of departure profile used would depend on the distances to obstacles in the vicinity so I want to pictorially represent the height of obstacles within certain radius of the centre of the pad so that crews can elect the safest type of departure for the given environment.
Thanks for the helpful input. I don't suppose you have a sample copy of a pad survey / photo?
EB