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Lun-class ekranoplan (ground effect vehicle) from 1987
(files.catbox.moe)
A place for all things cranes, trains, and excavators, and stuff like that.
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It gets better fuel efficiency than an airplane and goes 5x faster than a truck. Essentially you're sacrificing the ability to go high for a more efficient way of staying off the ground.
Iran uses modern tiny ones. Presumably they're cheaper than helicoptors or planes that could carry a similar payload.