USAF MB-2 FMC B450 tractor. A 3D printed resin model, designed to be used with the Italeri kits of the B-52G Stratofortress or B-52H Stratofortress, or the Modelcollect kits of the B-52G early type or the B-52H Stratofortress early type strategic Bomber, or the Anigrand Craftswork kits of the McDonnell-Douglas KC-10A Extender, the Lockheed C-5B Galaxy, or the VC-25A.