The National Emergency Command Post Afloat (NECPA) was part of the United States government's continuity of government plans during the 1960s. It was one third of a triad composing of airborne, ground and sea-based assets.
In Oct 1961, the JCS approved the NEACP plan, directing initial operating capability (IOC) by 1 March 1962. United States Atlantic Command converted the cruiser Northampton in March 1962, and the light carrier Wright in 1963 for NECPA duties. The United States Navy began alternating the ships in mid-1964, to keep one at sea and the other in port at any time. The Northampton was marginally upgraded for NECPA duties, since it was due for replacement; however, the Wright was modified to the utmost efficiency to hold the National Command Authorities for indefinite periods.
The software was developed by the Naval Electronics Laboratory, San Diego. The product was turned over for acceptance and administration to the Naval Command and Systems Support Activity (NAVCOSSACT), Navy Yard, Washington, DC.
A permanent UHF ground station (located in Waldorf, Maryland), served as the primary communications link between the separate command posts (NMCC, ANMCC, NEACP, NECPA). Three ground communications vans were located at Otis AFB, MA, Greenville, SC, and Homestead AFB, FL to cover commonly used routes of Presidential aircraft. After President John F. Kennedy’s assassination, vans were moved to Jackson, MS and Austin, TX, to cover President Lyndon B. Johnson’s travel routes.
- Post Attack Command and Control System (PACCS)
- Worldwide Military Command and Control System (WWMCCS)
- National Emergency Airborne Command Post (NEACP)
- National Military Command Center (NMCC)
- Alternate National Military Command Center (ANMCC)
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