Sorry, I just have to bite.
No 2s? Seriously? Who are you people? What do you do?
I am guessing you are either over 50 or work at Cranwell/Linton and have never left (or both). Probably daydream wistfully about the days when people flew in No1s.
Try thinking 21st century and using a bit of common sense every now and again, it's really liberating.