Navion From United States of America, joined May 1999, 1030 posts, RR: 1 Posted (5 years 3 months 1 week 6 days ago) and read 4473 times:
I have a friend who is an engineer working a specific issue regarding the A380 and he was wondering what the contact area was for each tire or the pressure exerted by the aircraft on the contact surface of the tires. Can anyone here help? Thank you.
WingedMigrator From United States of America, joined Oct 2005, 2353 posts, RR: 56
Reply 3, posted (5 years 3 months 1 week 4 days 22 hours ago) and read 4211 times:
The tires are inflated to 16 bar (230 psi)
The plane weighs up to 1.25 million pounds
The weight is primarily on 20 MLG tires
(1.25 million lb / aircraft) / (20 tires / aircraft) = 62,500 lb / tire
(62,500 lb / tire) / (230 lb / square inch) = 272 square inches
So the contact patch is approximately 19 inches in diameter.