Here is a quote from the RAF website,
"‘In our particular trade you need to be really fit, because there’s so much “humping and dumping”. But, in any trade, it’s a good idea to be fit: RAF operations are often carried out in the field, and living in tents can take it out of you physically."
Its not about being super fit, its about looking reasonably armed forces like. I realise some of you may come back with the Fat does not equall unfit. Call me an old tradionalist but when you look like Jabba the Hut in a flying suit, you aint about to out run the Taliban accross Helmand. Therefore you become a liability to the rest of the crew.
http://www.raf.mod.uk/careers/lifein...andfitness.cfm