The Boeing C-33 is the US military designation for Boeing 747-400 series intended to augment the C-17 Globemaster III fleet, but the plan was cancelled in favor of purchasing additional C-17s.
Everything you wanted to know about the Boeing 747, history, pictures and news
Other sites of interest
The Boeing C-33 is the US military designation for Boeing 747-400 series intended to augment the C-17 Globemaster III fleet, but the plan was cancelled in favor of purchasing additional C-17s.