Cape Canaveral Space Launch Complex 17

Space Launch Complex 17

Delta IIlaunch vehicle with theTHEMISspacecraft atop ready for launch on Pad 17B on 16 February 2007.
Launch site	Cape Canaveral Air Force Station(CCAFS)
Location	28°26′48″N80°33′58″W
Time zone	UTC−05:00(EST)
• Summer (DST)	UTC−04:00(EDT)
Short name	SLC-17
Operator	United States Air Force NASA
Total launches	325
Launch pad(s)	Two
Orbital inclination range	28°-57°
SLC-17A launch history Status Demolished Launches 161 First launch 30 August 1957 PGM-17 Thor Last launch 17 August 2009 Delta II/GPS IIR-M8 Associated rockets PGM-17 Thor Thor-Able Thor-Delta Thor DSV-2D DeltaA/B/C/D/E/G/L/M/N Delta 2000 Delta 3000 Delta II6000/7000 SLC-17B launch history Status Demolished Launches 164 First launch 25 January 1957 PGM-17 Thor Last launch 10 September 2011 Delta II/GRAIL Associated rockets PGM-17 Thor Thor-Ablestar Thor-Delta Thor DSV-2F Thor DSV-2G DeltaA/B/C/E/G Delta 1000 Delta 2000 Delta 3000 Delta 4000 Delta II6000/7000/H Delta III8000

Space Launch Complex 17(SLC-17), previously designatedLaunch Complex 17(LC-17), was a launch site atCape Canaveral Air Force Station(CCAFS),Floridaused forThorandDeltalaunch vehicles launches between 1958 and 2011.

It was built in 1956 for use with thePGM-17 Thormissile, the first operationalballistic missilein the arsenal of theUnited States.More recently the launch complex has been used for vehicles in theDeltalaunch vehicle family, derived from the Thor missile, to launch probes to theMoonand planets, solar observatories and weather satellites.

SLC-17 features twoexpendable launch vehicle(ELV) launch pads,17Aand17B.The pads were operated by the45th Space Wingand have supported more than 300Department of Defense,NASAand 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 Following the last military launch, in August 2009, SLC-17A was withdrawn from use, and LC-17B was transferred to NASA (SLC-17B) for two remaining launches.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 theDelta familyof 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 theUS Air Force.The US Air Force transferred Launch Complex 17A toNASA(SLC-17A) in 1965, but the site was returned to the US Air Force in 1988 to support theDelta IIprogram.

As Delta II launches continued over the next decades, Pad 17B was modified in 1997 to support a new, more powerful launch vehicle, theDelta 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 theExplorerandPioneerspace probes, all of theOrbiting Solar Observatories,theSolar Maximum Mission,biological satellites (Biosatellite program), theInternational Cometary Explorer(ICE), theTIROSandGOESmeteorology satellites, and theMars Exploration RoversSpiritandOpportunity.

On 10 September 2011, a Delta II 7920H-10C made the final launch from SLC-17B, carrying NASA'sGRAILspacecraft. All remaining Delta II launches were made fromVandenberg Air Force BaseinCalifornia.

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 forMoon Expressto build and test its lunar lander.

• 
  SLC-17 showing pads A and B in 2007
• 
  SLC-17 blockhouse with the Mobile Service Tower in the distance.

References

• Lynda Warnock; Dennis Armstrong (20 May 2004)."MESSENGER Launch Pad Activities: About Launch Complex 17".NASA. Archived fromthe originalon 23 September 2008.Retrieved12 December2008.This article incorporates text from this source, which is in thepublic domain.

External links

• Video of demolition of Launch Complex 17