The Fairchild XC-120 Packplane was an American experimental transport aircraft first flown in 1950.
It was developed from the company’s C-119 Flying Boxcar, and was unique in the unconventional use of removable cargo pods that were attached below the fuselage, instead of possessing an internal cargo compartment.
Imagine a modern adaptation, holding one or more standard ISO shipping containers in a fairing. Then telescope up on its legs and taxi away from it. Possibly with a fairing that folds under the ISO container, or maybe a fabric one that can be pulled into place.