Space Launch Complex 17 (SLC-17), previously designated Launch Complex 17 (LC-17), was a launch site at

Cape Canaveral Space Force Station Cape Canaveral Space Force Station (CCSFS) is an installation of the United States Space Force's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida. Headquartered at the nearby Patrick Space Force Base, the sta ...

Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...

used for

Thor Thor (from ) is a prominent list of thunder gods, god in Germanic paganism. In Norse mythology, he is a hammer-wielding æsir, god associated with lightning, thunder, storms, sacred trees and groves in Germanic paganism and mythology, sacred g ...

and

Delta Delta commonly refers to: * Delta (letter) (Δ or δ), the fourth letter of the Greek alphabet * D (NATO phonetic alphabet: "Delta"), the fourth letter in the Latin alphabet * River delta, at a river mouth * Delta Air Lines, a major US carrier ...

launch vehicles launches between 1958 and 2011. Originally built in 1956, SLC-17 features two

expendable launch vehicle An expendable launch system (or expendable launch vehicle/ELV) is a launch vehicle that can be launched only once, after which its components are destroyed during reentry or impact with Earth, or discarded in space. ELVs typically consist of s ...

(ELV) launch pads, SLC-17A and SLC-17B. The pads were operated by the 45th Space Wing and have supported more than 300

Department of Defense The United States Department of Defense (DoD, USDOD, or DOD) is an executive department of the U.S. federal government charged with coordinating and supervising the six U.S. armed services: the Army, Navy, Marines, Air Force, Space Force, ...

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...

and commercial missile and rocket launches.

History

SLC-17 was built in 1956 by the

United States Air Force The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its ori ...

for use with the

PGM-17 Thor The PGM-17A Thor was the first operative ballistic missile of the United States Air Force (USAF). It was named after the Thor, Norse god of thunder. It was deployed in the United Kingdom between 1959 and September 1963 as an intermediate-range b ...

missile, the first operational

ballistic missile A ballistic missile is a type of missile that uses projectile motion to deliver warheads on a target. These weapons are powered only during relatively brief periods—most of the flight is unpowered. Short-range ballistic missiles (SRBM) typic ...

in the arsenal of the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

. It was initially designed for testing suborbital launches of the Thor, in accordance to the

IRBM An intermediate-range ballistic missile (IRBM) is a ballistic missile with a range between (), categorized between a medium-range ballistic missile (MRBM) and an intercontinental ballistic missile (ICBM). Classifying ballistic missiles by ran ...

's planned stationing in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

as part of

Project Emily Project Emily was the deployment of American-built Thor intermediate-range ballistic missiles (IRBMs) in the United Kingdom between 1959 and 1963. Royal Air Force (RAF) Bomber Command operated 60 Thor missiles, dispersed to 20 RAF air stations ...

. Pad 17A supported its first Thor missile launch on 3 August 1957, and Pad 17B supported its first Thor launch on 25 January 1957. As the Thor got wound down from missile use due to the advent of longer-range ICBMs, the site was upgraded in the early 1960s to support a variety of space-oriented launch vehicles derived from the basic Thor booster. Initially starting with the

Thor-Able The Thor-Able was an American expendable launch system used for a series of re-entry vehicle tests and spacecraft launches between 1958 and 1960. It was a two-stage rocket, consisting of a Thor IRBM as a first stage and a Vanguard-derived Abl ...

in 1958, these Thor-based rockets 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. The Air Force transferred Launch Complex 17A to

in 1965, but the site was returned to the military in 1988 to support

McDonnell Douglas McDonnell Douglas Corporation was a major American Aerospace manufacturer, aerospace manufacturing corporation and defense contractor, formed by the merger of McDonnell Aircraft and the Douglas Aircraft Company in 1967. Between then and its own ...

Delta II Delta II was an expendable launch system, originally designed and built by McDonnell Douglas, and sometimes known as the Thorad Delta 1. Delta II was part of the Delta rocket family, derived directly from the Delta 3000, and entered service in ...

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 Delta III was an expendable launch vehicle made by McDonnell Douglas (later acquired by Boeing). Development was canceled before the vehicle became operational. The vehicle is the third generation of the Delta rocket family, developed from the ...

, 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 Exploration is the process of exploring, an activity which has some Expectation (epistemic), expectation of Discovery (observation), discovery. Organised exploration is largely a human activity, but exploratory activity is common to most organis ...

and

Pioneer Pioneer commonly refers to a person who is among the first at something that is new to a community. A pioneer as a settler is among the first settling at a place that is new to the settler community. A historic example are American pioneers, perso ...

space probes, all of the Orbiting Solar Observatories, the

Solar Maximum Mission The Solar Maximum Mission satellite (or SolarMax) was designed to investigate Solar phenomena, particularly solar flares. It was launched on February 14, 1980. The SMM was the first satellite based on the Multimission Modular Spacecraft bus man ...

, biological satellites (

Biosatellite program NASA, NASA's Biosatellite program was a series of three Uncrewed spacecraft, uncrewed artificial satellites to assess the effects of spaceflight, especially radiation and weightlessness, on living organisms. Each was designed to reenter Earth's at ...

), the

International Cometary Explorer The International Cometary Explorer (ICE) spacecraft, designed and launched as the International Sun-Earth Explorer-3 (ISEE-3) satellite, was launched on 12 August 1978 into a heliocentric orbit. It was one of three spacecraft, along with the m ...

(ICE), the

TIROS Television InfraRed Observation Satellite (TIROS) is a series of early weather satellites launched by the United States, beginning with TIROS-1 in 1960. TIROS was the first satellite that was capable of remote sensing of the Earth, enabling sc ...

and

GOES The Geostationary Operational Environmental Satellite (GOES), operated by the United States' National Oceanic and Atmospheric Administration (NOAA)'s National Environmental Satellite, Data, and Information Service division, supports weather fo ...

meteorology satellites, and the

Mars Exploration Rover NASA's Mars Exploration Rover (MER) mission was a robotic space mission involving two Mars rovers, ''Spirit (rover), Spirit'' and ''Opportunity (rover), Opportunity'', exploring the planet Mars. It began in 2003 with the launch of the two rove ...

s '' Spirit'' and ''

Opportunity Opportunity may refer to: Places * Opportunity, Montana, an unincorporated community, United States * Opportunity, Nebraska, an unincorporated community, United States * Opportunity, Washington, a former census-designated place, United States * ...

''. Following the last military launch, in August 2009, SLC-17A was withdrawn from use, and LC-17B was transferred to NASA for two remaining launches. On 10 September 2011, a Delta II 7920H-10C made the final launch from SLC-17B, carrying NASA's

GRAIL The Holy Grail (, , , ) is a treasure that serves as an important motif in Arthurian literature. Various traditions describe the Holy Grail as a cup, dish, or stone with miraculous healing powers, sometimes providing eternal youth or sustenanc ...

spacecraft. All remaining Delta II launches were made from

SLC-2W Space Launch Complex 2 (SLC-2) is an active rocket launch site at Vandenberg Space Force Base, in California, USA. It consists of two launch pads: Space Launch Complex 2 East (SLC-2E, originally LC 75-1-1), used by the PGM-17 Thor missile and sev ...

Vandenberg Air Force Base Vandenberg may refer to: * Vandenberg (surname), including a list of people with the name * USNS ''General Hoyt S. Vandenberg'' (T-AGM-10), transport ship in the United States Navy, sank as an artificial reef in Key West, Florida * Vandenberg S ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

until its ultimate retirement in 2018. 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 Moon Express (MoonEx; vehicle model prefix: MX) is an American privately held company formed in 2010 by a group of Silicon Valley and space entrepreneurs. It had the goal of winning the $30 million Google Lunar X Prize, and of ultimately mining th ...

to build and test its lunar lander. As of August 2024, the

United States Space Force The United States Space Force (USSF) is the space force branch of the United States Department of Defense. It is one of the six United States Armed Forces, armed forces of the United States and one of the eight uniformed services of the Unite ...

(having taken over the Air Force's jurisdiction) plans to fully demolish SLC-17 and the neighboring LC-18 in favor of extending Lighthouse Road and reconnecting its two separate sections back together.

Launch statistics

SLC-17A

SLC-17B

Gallery

File:Complex Number 17 at Cape Canaveral where TIROS-carrying Thor-Delta rockets were launched (2268-119).jpg, SLC-17 in the 1960s, holding a Thor-Delta carrying

satellites File:View over Launch Complex 17.jpg, SLC-17 showing pads A and B in 2007 File:GENERAL VIEW OF BLOCKHOUSE IN SETTING FROM ROOF OF 36001; VIEW TO EAST. - Cape Canaveral Air Station, Launch Complex 17, Facility 28401, East end of Lighthouse Road, Cape HAER FAL,5-CACAN,1A-1.tif, SLC-17 blockhouse with the Mobile Service Tower in the distance. File:Space Launch Complex-17 demolition (180712-F-DJ189-0001).jpg, The two launch towers of SLC-17 getting demolished in 2018

References

External links

Video of demolition of Launch Complex 17
{{Thor and Delta rockets Cape Canaveral Space Force Station