This Quonset hut-style hospital was kept inflated by compressed air from a utility unit. Standing 20 x 52 feet, this portable hospital’s utility unit provided the positive air flow, power, heat, hot and cold water, and most welcome in the Southeast Asia jungles–air conditioning.
Note: poor alignment of pages cuts off part of structure.
Click to Enlarge to 1269 x 460 px:

Source: Popular Science July 1967