Hi Lang:
Makes sense... I wasn't sure what mixture pilots breathe hence my guess at mixed breathing gas. A little follow up research led to this table (
http://www.ww2wings.com/wings/italy/italymain.shtml) where I learned that IT fighters of WWII could reach an average ceiling of 35,000 feet so pure O2 would definitely be needed!
As for pasta making, I saw a science film in grade school that showed the annual spaghetti harvest and spaghetti, for one, defintely grows on bushes... other pasta may need a large trailer mounted compressor to squish out those odd wiggly shapes
Cheers! Mike