Dear Me Tinker, Chill out, nobody is having a go at you, you must be having a bad day or the beer is flat?
Maybe the crap 5 has changed since I did my exams, but mine dont have a wind arm, but thats not to say yours or anyone elses doesnt.
I am not entering a slanging match or insulting you or anybody, remember this is a PROFESSIONAL Pilots Forum, I have better things to do with my time, the point is GOOD LUCK RODGER THE CABIN BOY, hope it all comes together for you.