Despite the potential benefits for the Air Force, the military was satisfied with its expendable boosters and did not need or want the shuttle as much as NASA did. Because the space agency needed outside support, the Defense Department (DoD) and the National Reconnaissance Office (NRO) gained primary control over the design process. For example, NASA planned a cargo bay, but NRO specified a bay because it expected future intelligence satellites to become larger. When Faget again proposed a 12-foot wide payload bay, the military almost immediately insisted on retaining the 15-foot width. The Air Force also gained the equivalent of use of one of the shuttles for free despite not paying for the shuttle's development or construction. In exchange for the NASA concessions, the Air Force testified to the Senate Space Committee on the shuttle's behalf in March 1971.