San Salvador in the Bahamas. After the success of this operation, the wing began to use inactive duty training periods for Operation Swift Lift, transporting high priority cargo for the Air Force and Operation Ready Swap, transporting aircraft engines between Air Materiel Command's depots. In 1958, the 2233d Center was inactivated and some of its personnel were absorbed by the wing. In place of active duty support for reserve units, ConAC adopted the Air Reserve Technician program, in which a cadre of the unit consisted of full-time personnel who were simultaneously civilian employees of the Air Force and also held military rank as members of the reserves. After 1958, the wing increasingly participated in humanitarian and other airlift missions. By the mid-1960s, it was augmenting Military Air Transport Service airlift operations on a regular basis. Dispersed squadrons Starting in late 1955, Continental Air Command (ConAC) began to disperse some of its reserve flying squadrons to separate bases in order to improve recruiting and avoid public objection to entire wings of aircraft being stationed near large population centers under what was called the Detached Squadron Concept. The wing's 337th Troop Carrier Squadron was activated at Bradley Field, Connecticut in July 1958 and its 336th Troop Carrier Squadron moved to Stewart Air Force Base, New York in April 1961 as part of this program. In April 1959, the wing reorganized under the Dual Deputy system. Its 514th Troop Carrier Group was inactivated and the 335th, 336th and 337th Troop Carrier Squadrons were assigned directly to the wing. Activation of groups under the wing Although the dispersal of flying units was not a problem when the entire wing was called to active service, mobilizing a single flying squadron and elements to support it proved difficult. This weakness was demonstrated in the partial mobilization of reserve units during the Berlin Crisis of 1961 To resolve this, at the start of 1962, ConAC determined to reorganize its reserve wings by establishing groups with support elements for each of its troop carrier squadrons. This reorganization would facilitate mobilization of elements of wings in various combinations when needed. However, as this plan was entering its implementation phase, another partial mobilization occurred for the Cuban Missile Crisis. The formation of troop carrier groups was delayed until January for wings that had not been mobilized. The 903d Troop Carrier Group at McGuire, the 904th Troop Carrier Group at Stewart,