[1] So-called 'pod planes' can be divided into two main sections: the flying component that consists of the airframe, cockpit and engines; and the detachable pods, which would contain the cabin or cargo hold.
As intended, the aircraft was to carry detachable pods of varying sizes for transporting cargo; it was believed that this arrangement was capable of allowing rapid turnaround times on the ground.
Described as a futuristic "pod plane", it was a development of the conventional C-119 Flying Boxcar, although the aircraft underwent evaluation flights including of its logistical capabilities, the project was ultimately canceled without any further production or direct follow-on effort.
[3][4] During the 1960s, the Sikorsky CH-54 Tarhe, a heavy-lift helicopter crane, could also be outfitted with exchangeable cargo pods; it was adopted in limited numbers by the United States Army and deployed during the Vietnam War for logistics purposes.
[15] The vehicle employed a modular cabin concept, known as Transpose, which was promoted as, amongst other benefits, allowing for new entertainment and commercial modules to be rapidly installed and removed from aircraft dependent on demand.
Interconnecting 5–50 ft (1.5–15.2 m) long aluminum containers carry the flight loads, aiming to lower overseas airfreight costs by 60%, and plan to convert a C-130H with the help of Wagner Aeronautical of San Diego, experienced in passenger-to-cargo conversions.