With regard to flying suits etc, on one view we should all wear nomex suits, helmets and gloves whenever we fly, but we don't and never will. People (me included) still ski over steep and rocky terrain at 30-40 mph without wearing helmets (although helmets have recently started to appear on recreational skiers and boarders), and until fairly recently it was normal to ride a horse across country without a hard hat on. . .. .It would be difficult not to feel a plonker climbing out of the average GA aircraft wearing a flying suit. The older the aircraft, the more smelly and oily it tends to be, and the more difficult to get into and out of, so in classics and warbirds a flight suit makes sense as well as looking the part and, most importantly, providing some defence against fire and (if you remember to zip up the 97 pockets) lose foreign objects. . .. .It perhaps wouldn't be a bad idea for flying clubs to display information about the fire retardant properties (read: lack of) of the clothes than many people customarily wear to go flying in.. .. .Good luck with your project.