Air Force file photo of the first launch of a Trident missile on Jan. 18, 1977 at Cape Canaveral, Fla.
original image caption: 030910-N-0000X-002 Cape Canaveral, Fla. (Jan. 18, 1977 -- Air Force file photo of the first launch of a Trident missile on Jan. 18, 1977 at Cape Canaveral, Fla. The Navy museum has just received an example of a Trident I C-4 missile, which will be part of a submarine exhibit in the future cold war annex of the museum. The C-4 was based on an extended-range version of the older Poseidon missile, and led to the current and more advanced Trident II D-5 missile. First deployed in 1979, the Trident I was used on 12 Lafayette-class and the first eight Ohio-class submarines. DOD File Photo provided by the Naval Historical Center, Washington, D.C. (RELEASED)
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