On This Day in History / August 11, 2023 1950: Air Force detachable fuselage transport XC-120, built by Fairchild, completed its maiden flight. The Fairchild XC-120 Packplane was an American experimental modular 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.