Excellent Dave...well done... 

I don't think folks realise just how cold it got for those lads during the Great War/World War One in those aeroplanes.
I remember freezing my own butt off in the early 50s in those old bugsmashers...did it make a man out of me...nope...I just put on two sets of red flannel longjohns with trap doors and two pair of woolen socks... 

Cheers...Happy Landings...Doug