Forum Discussion
frankdamp
Nov 12, 2015Explorer
The FAA requires airplane tires to be inflated with nitrogen due to in flight tire bursts on retracted landing gear wheels. I worked in Boeing's landing gear group for a couple of years and investigated a serious incident on a 727.
A main gear tire blew out at about 18,000'and punched a hole in the bulkhead between the wheel-well and the aft cargo bay. If a couple of mailbags hadn't jammed in the hole, the airplane would probably have crashed.
It turned out that the airplane had taxied a long way before take-off and had a dragging brake. The blow-out actually failed the steel cords in the tire bead. Calculations indicated that a pressure of about 12,000 psi would be needed to do that.
Tests showed that the tire had been hot enough to expel explosive gases from the rubber compounds in the tire and they had exploded.
If your RV can accelerate to 150 mph in two miles with a dragging brake, then you stash the wheels away in a closed box and climb to 18,000 feet, you need nitrogen inflation. Otherwise regular atmospheric air is fine, and much cheaper.
A main gear tire blew out at about 18,000'and punched a hole in the bulkhead between the wheel-well and the aft cargo bay. If a couple of mailbags hadn't jammed in the hole, the airplane would probably have crashed.
It turned out that the airplane had taxied a long way before take-off and had a dragging brake. The blow-out actually failed the steel cords in the tire bead. Calculations indicated that a pressure of about 12,000 psi would be needed to do that.
Tests showed that the tire had been hot enough to expel explosive gases from the rubber compounds in the tire and they had exploded.
If your RV can accelerate to 150 mph in two miles with a dragging brake, then you stash the wheels away in a closed box and climb to 18,000 feet, you need nitrogen inflation. Otherwise regular atmospheric air is fine, and much cheaper.
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