I know a few things about large equipment.

I also found this on the interwebz. MRAP on a C-17.




Loadmasters Tech Sgt. Kenneth Bragg (left) and Staff Sgt. Lucas P. Crumpton assess the strength of the tie down chains that are keeping an Mine Resistant Ambush Protected vehicle aboard a C-17 Globemaster III while at Kadena Air Base, Japan, Dec. 29, 2008. Each chain is suppose to be able to support 25,000 pounds, but due to the configuration, the ratio is limited; therefore they must make sure actual ratio is the effective ratio required to support the vehicle. (U.S. Air Force photo/Tech Sgt. Cohen A. Young)