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Complex 25

Located approximately 1.5 mi to the SSW of SLC-17, complex 25 consisted of 4 pads built to support US Navy programs. 25A and B were started in 1957 and 1958 respectively. From these pads, 68 POLARIS missiles were launched as part of the development testing of these Sea Launched Ballistic Missiles (SLBMs). Pads 25C and 25D were built in 1967 to support the Navy's POSEIDON ballistic missile program. From these pads, 17 POSEIDON launch vehicles were launched in 1969. The two original pads were disabled while pad 25C was modified to support the TRIDENT I program. In 1979, after launching 17 TRIDENT I missiles from pad 25C, the Navy deactivated and dismantled the site. It remains inactive at this time.




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