How about "reduce" for shipment?KsM715, that's what tilt means. Dump is entirely different.
It was NOT designed to carry a load and dump it. It was designed to tilt for packing them in a plane or ship for transport.
The Chief put up some nice pictures a while back of them stowed in the tilt position where they just packed a ton of them in there for shipping. I forgot what thread it was, but it was an interesting and educational read.
Certainly wouldn't do for transport by air. If the AF gives up one of their precious birds you're not going to load empty trailers on it and they certainly aren't going to wait for you to load a bunch of disassembled trailers on board.
For maximizing storage in the holds of old fashioned breakbulk cargo ships (as a Liberty etc). Today we use RORO and has the folding hitch really has no utility only a novelty.