The XCH-62 was an oversized CH-46 derivative helicopter designed to carry containerized cargo. It never made it past the prototype, and I'm not certain the prototype was more than a "dummy". Compare the XCH-62's size to the CH-46/47
http://www.globalsecurity.org/military/systems/aircraft/h-62-pics.htm
To me, the concept has merit today. It would be much faster to deliver fully loaded containers. You could likely even have a lightly armored troop carrier container. The copter could drop it, and leave before the troops even disembarked. Deliver weapons of various sizes, ammo, small medical facilities, bunk houses, toilets, C3, small vehicles etc - all configured in standard size shipping containers. Some militaries are already using the standard shipping containers preconfigured into all sorts of uses. Some call this the "Battle Box" concept. This helicopter would just move them fast.
I would like to believe this could be developed relatively quickly due to a lot of commonality with the CH-47 although I'm not very optimistic given procurement practices. As the CH-47 has substantially improved performance over the CH-46 common at the time of the XCH-62's, one would expect similar improvements for a new XCH-62.
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