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Cape Canaveral Launch Complex 25

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Launch Complex 25 (LC-25) was a four-pad launch site at Cape Canaveral Space Force Station, Florida built for test flights of the US Navy's submarine-launched ballistic missiles Polaris, Poseidon and Trident from 1958–1979.Pads 25A and 25B were built in 1957. Pads 25C and 25D were added in May 1968 for the larger Poseidon. The blockhouse eventually served all four pads. It was extensively reinforced when the Poseidon pads, 25C and 25D, were added. Pad 25B was initially built with an underground launch mechanism known as a ship motion simulator to simulate the roll and pitch of a submarine. It was first used August 14, 1959 and was mothballed in October 1961.The launch complex was dismantled in 1979. In November 2012, ground was broken for a new $185-million Navy missile test facility to be built over the underground structures at LC-25 and LC-29 called the Strategic Weapon System Ashore. The facility will allow the testing of fire control, launch systems and navigation for submarine-fired missiles to be conducted at one facility instead of being done by contractors in different locations around the country.

Excerpt from the Wikipedia article Cape Canaveral Launch Complex 25 (License: CC BY-SA 3.0, Authors).

Cape Canaveral Launch Complex 25
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N 28.431988 ° E -80.576943 °
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Launch Complex 25

Pier Road
32920
Florida, United States
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Cape Canaveral Space Launch Complex 17
Cape Canaveral Space Launch Complex 17

Space Launch Complex 17 (SLC-17), previously designated Launch Complex 17 (LC-17), was a launch site at Cape Canaveral Air Force Station (CCAFS), Florida used for Thor and Delta launch vehicles launches between 1958 and 2011. It was built in 1956 for use with the PGM-17 Thor missile, the first operational ballistic missile in the arsenal of the United States. More recently the launch complex has been used for vehicles in the Delta launch vehicle family, derived from the Thor missile, to launch probes to the Moon and planets, solar observatories and weather satellites. SLC-17 features two expendable launch vehicle (ELV) launch pads, 17A and 17B. The pads were operated by the 45th Space Wing and have supported more than 300 Department of Defense, NASA and commercial missile and rocket launches. Following the last military launch, in August 2009, SLC-17A was withdrawn from use, and LC-17B was transferred to NASA (SLC-17B) for two remaining launches. Pad 17A supported its first Thor missile launch on 3 August 1957, and Pad 17B supported its first Thor launch on 25 January 1957. The site was upgraded in the early 1960s to support a variety of more modern ELVs, which were derived from the basic Thor booster. The modern ELVs based on Thor came to be called the Delta family of launch vehicles. Thirty-five early Delta rocket missions were launched from Complex 17 between the beginning of 1960 and the end of 1965. At that time the complex was operated by the US Air Force. The US Air Force transferred Launch Complex 17A to NASA (SLC-17A) in 1965, but the site was returned to the US Air Force in 1988 to support the Delta II program. As Delta II launches continued over the next decades, Pad 17B was modified in 1997 to support a new, more powerful launch vehicle, the Delta III, which made its maiden flight from the complex on 26 August 1998. The launch ended in failure, as did a second launch the next year. After a third launch on 23 August 2000 placed a mass simulator into a lower than planned orbit, the program was abandoned. Among the major NASA missions launched from the complex were the Explorer and Pioneer space probes, all of the Orbiting Solar Observatories, the Solar Maximum Mission, biological satellites (Biosatellite program), the International Cometary Explorer (ICE), the TIROS and GOES meteorology satellites, and the Mars Exploration Rovers Spirit and Opportunity. On 10 September 2011, a Delta II 7920H-10C made the final launch from SLC-17B, carrying NASA's GRAIL spacecraft. All remaining Delta II launches were made from Vandenberg Air Force Base in California. At 11:00 UTC (7:00 a.m. EDT) on 12 July 2018, both launch towers had been demolished via controlled demolition to make way for Moon Express to build and test its lunar lander.