On large aircraft, braked wheel assemblies are normally inflated with
- nitrogen with not more than 5% oxygen.
- an argon and CO2 mixture.
- dry compressed air from a shop air supply.
Explanation from PART66Online
Tyres on braked wheels run hot, so they are charged with an inert gas. CS-25.733(e) requires the gas mixture in such a tyre to hold no more than 5 per cent oxygen by volume, which is why the answer naming that limit is correct. Dry compressed air is about 21 per cent oxygen and is not permitted on a braked wheel, and an argon and carbon dioxide mixture is not the servicing medium used.
S
squareroot asked · 8 Feb 2018
i found the same question but difference answer
Community Comments (1)
J
Jordi
16 Jul 2021
me too but i think the most logical one is this rather than plain nitrogen.
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