I've always thought it a bit odd that CrabAir have such bizarre regulations concerning the wearing of flying brevets.
"has been considered and consistently rejected on both cost and utility grounds in the past".
What a total non-statement. As someone highlighted, this is probably due to CS, blunties and goat blowers making up the RAF dress committee. I'm surprised they've not made a 'Half Wing Pencil' brevet or an aggressive typewriter with wings. They'd no doubt sign that off.
I guess crab aircrew get around the regulation by just wearing flying suits where ever they go (why oh why wear flying suits for a 2 week HF course at Shriv??)
We pongos are a bit more relaxed when it comes to wearing brevets. As for cost and utility? Having a set of cloth wings with pin clasps on the back is cost effective and has utility. We can wear them with anything (all the ridiculous dress states we have)