re: #273 eon

Earth’s atmosphere;

Nitrogen- 80%

Oxygen- 16%

Carbon dioxide-2%

Trace elements (“noble gases”- argon, neon, etc.)- 2%

High school earth science class figures. It’s also why those gas stations that want to charge you for inflating your tires with “pure nitrogen” which is somehow better than plain compressed air are ripping you off. Air is
mostly nitrogen to begin with. The only place it is an advantage is in long term airtight storage of something (liker electronic equipment, ordnance, etc.) to suppress condensation- which is a waste of time in a tire, because the bead seal is never tight enough to exclude atmospheric moisture.

cheers

eon

Many aircraft tires are nitrogen inflated. In case of wheel lock up nitrogen does not support combustion.