QUOTE(dimitrios @ Jun 17 2006, 12:23 AM)
Can someone explain me why the tires of aircraf are filled with nitrogen?
Federal Aviation Administration, DOT - 14 CFR Part 25
(Any aircraft with a MCTW of more than 12,560 pounds that has retractable undercarriage containing braked wheels).
Final Rule - RIN 2120-AD87 - Use of Nitrogen or Other Inert Gas for Tire inflation in Lieu of Air
SUMMARY: This amendment to the Federal Aviation Regulations (FAR) requires that an inert gas, such as nitrogen, be used in lieu of air, for inflation of tires on certain transport category airplanes. This action is prompted by at least three cases in which the oxygen in air-filled tires combined with volatile gases given off by a severely overheated tire and exploded upon reaching autoignition temperature. The use of an inert gas for tire inflation will eliminate the possibility of a tire explosion.
EFFECTIVE DATE: This rule becomes effective March 29, 1993.
(Besides, dry nitrogen contains no water vapor. thus no ice formation)
Hope this helps, best regards.