The Treasure Island Radar Bomb Scoring Site (call sign "San Francisco Bomb Plot") was a Strategic Air Command (SAC) automatic tracking radar facility established on the island. Major Posey was the commander of Detachment B (Capt Carlson on August 1, 1949) which evaluated simulated bombing missions on targets in the San Francisco metropolitan area for maintaining Cold War bomber crews' proficiency. A nearby "Stockton Bomb Plot (Det I)" moved to Charlotte in 1950, and the Treasure Island unit was redesignated Detachment 13 in 1951, the year 3 other SAC detachments used a nearby staging/preparation area for deploying via the bay for Korean War ground-directed bombing (cf. the Sacramento Bomb Plot at a McClellan AFB Annex in 1951.) On October 16, 1951, Treasure Island's Det 13 was assigned under March AFB's 3933rd Radar Bomb Scoring Squadron before moving from the island by August 10, 1954 when the 11th RBS Squadron was activated.