Kennedy Space Center Launch Complex 39B

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Launch Complex 39B
Artemis I Arrives at Pad 39B (Cropped).jpg
Space Launch System atop LC-39B on March 18, 2022
Kennedy Space Center Launch Complex 39B
Launch site Kennedy Space Center
Location Merritt Island, Florida
Coordinates 28°37′38″N80°37′15″W / 28.62722°N 80.62083°W / 28.62722; -80.62083
Time zone UTC−05:00 (EST)
 Summer (DST)
UTC−04:00 (EDT)
Operator NASA (1967–present)
Orbital inclination
range
28–62°
Launch history
StatusActive
Launches60
First launchMay 18, 1969 (1969-05-18)
Saturn V / Apollo 10
Last launchNovember 16, 2022 (2022-11-16)
Space Launch System / Artemis 1
Associated
rockets
Launch Complex 39--Pad B
USA Florida location map.svg
Red pog.svg
Usa edcp location map.svg
Red pog.svg
LocationJohn F. Kennedy Space Center, Titusville, Florida
Area160 acres (65 ha)
Built1967-1968
MPS John F. Kennedy Space Center MPS
NRHP reference No. 99001639 [1]
Added to NRHPJanuary 21, 2000

Launch Complex 39B (LC-39B) is the second of Launch Complex 39's three launch pads, located at NASA's Kennedy Space Center in Merritt Island, Florida. The pad, along with Launch Complex 39A, was first designed for the Saturn V launch vehicle, which at the time was the United States' most powerful rocket. Typically used to launch NASA's crewed spaceflight missions since the late 1960s, the pad is currently configured for use by the agency's Space Launch System rocket, a Shuttle-derived launch vehicle which is currently used in the Artemis program and subsequent Moon to Mars campaigns. The pad had also been leased by NASA to aerospace company Northrop Grumman, for use as a launch site for their Shuttle-derived OmegA launch vehicle, for National Security Space Launch flights and commercial launches, before the OmegA program was cancelled.

Contents

History

Apollo program

In 1961, President Kennedy proposed to Congress the goal of landing a man on the Moon by the end of the decade. Congressional approval led to the launch of the Apollo program, which required a massive expansion of NASA operations, including an expansion of launch operations from the Cape to adjacent Merritt Island to the north and west. [2]

Launch Complex 39B was designed to handle launches of the Saturn V rocket, the largest and most powerful launch vehicle, which would propel Apollo spacecraft to the Moon. Launch Complex 39B's inaugural launch in May 1969 was also that of the only Saturn V to launch from the pad; SA-505, used to launch the Apollo 10 mission.

After the Apollo 17 mission in 1972, Pad 39B was used for Saturn IB launches. The Mobile Launchers were then modified for the Saturn IB rocket, by adding a "milk-stool" extension platform to the launch pedestal, so that the S-IVB upper stage and Apollo spacecraft swing arms would reach their targets. These were used for three crewed Skylab flights and the Apollo–Soyuz, since the Saturn IB pads 34 and 37 at Cape Canaveral had been decommissioned. [3] [4]

Space Shuttle

With the advent of the Space Shuttle program in the early 1980s, the original structure of the launch pads were remodeled for the needs of the Space Shuttle. Pad 39A hosted all Space Shuttle launches until January 1986, when Space Shuttle Challenger would become the first to launch from pad 39B during the ill-fated STS-51-L mission, which ended with the destruction of Challenger and the death of the mission's crew a minute into the flight.

Launch Complex 39B hosted 53 Space Shuttle launches until December 2006, when Discovery launched from the pad for the final time during the STS-116 mission. The program's remaining flights launched from pad 39A. To support the final Shuttle mission to the Hubble Space Telescope STS-125 launched from pad 39A in May 2009, Endeavour was placed on 39B if needed to launch the STS-400 rescue mission.

Constellation program

Launch Complex 39B would subsequently be reconfigured for crewed Ares I launches as part of the Constellation program; the Ares I-X mission launched a prototype Ares I from 39B in October 2009, prior to the program's cancellation the following year.

Artemis program

On November 16, 2022, at 06:47:44 UTC, the Space Launch System (SLS) was launched from Complex 39B as part of the Artemis 1 mission. [5] [6]

Current status

After the Ares I-X test flight in 2009, NASA removed the Fixed Service Structure (FSS) from Pad 39B, returning the location to an Apollo-like "clean pad" design for the first time since 1977. This approach is intended to make the pad available to multiple types of vehicles that will arrive at the pad with service structures on the mobile launcher platform, as opposed to using fixed structures on the pad. [7] The LH2, LOX, and water tanks used for the sound suppression system are the only structures left from the Space Shuttle era. [8] [9] [10]

In 2014, NASA announced that it would make LC-39B available to commercial users during times when it is not needed by the Space Launch System. [11] NASA subsequently agreed to allow Orbital ATK to use LC-39B for their OmegA launch vehicle. [12] However Northrop Grumman, who absorbed Orbital ATK in June 2018, [13] cancelled the development of OmegA in September 2020 before any launches had taken place; SLS will therefore remain the only user of LC-39B for the foreseeable future. [14] [15]

As of November 2022, LC-39B manages the Space Launch System (SLS)'s processing and launch operations, as part of the first phase of a five-phase project, were being completed. The second phase of this project is currently budgeted for $89.2 million. [16] [17] [6]

Launch statistics

1
2
3
4
5
6
1965
1970
1975
1980
1985
1990
1995
2000
2005
2010
2015
2020

See also

Related Research Articles

<span class="mw-page-title-main">Kennedy Space Center</span> United States space launch site in Florida

The John F. Kennedy Space Center, located on Merritt Island, Florida, is one of the National Aeronautics and Space Administration's (NASA) ten field centers. Since December 1968, KSC has been NASA's primary launch center of American spaceflight, research, and technology. Launch operations for the Apollo, Skylab and Space Shuttle programs were carried out from Kennedy Space Center Launch Complex 39 and managed by KSC. Located on the east coast of Florida, KSC is adjacent to Cape Canaveral Space Force Station (CCSFS). The management of the two entities work very closely together, share resources, and operate facilities on each other's property.

<span class="mw-page-title-main">Vehicle Assembly Building</span> Spacecraft assembly building operated by NASA at the Kennedy Space Center

The Vehicle Assembly Building, or VAB, is a large building at NASA's Kennedy Space Center (KSC) in Florida, designed to assemble large pre-manufactured space vehicle components, such as the massive Saturn V, the Space Shuttle and the Space Launch System, and stack them vertically onto one of three mobile launcher platforms used by NASA. As of March 2022, the first Space Launch System (SLS) rocket was assembled inside in preparation for the Artemis 1 mission, launched on November 16, 2022.

<span class="mw-page-title-main">Cape Canaveral Space Force Station</span> Military rocket launch site in Florida

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.

<span class="mw-page-title-main">Kennedy Space Center Launch Complex 39A</span> Historic launch pad operated by NASA and SpaceX

Launch Complex 39A (LC-39A) is the first of Launch Complex 39's three launch pads, located at NASA's Kennedy Space Center in Merritt Island, Florida. The pad, along with Launch Complex 39B, was first constructed in the 1960s to accommodate the Saturn V launch vehicle, and has been used to support NASA crewed space flight missions, including the historic Apollo 11 moon landing and the Space Shuttle. The site is currently leased by SpaceX and supports launches of the Falcon 9 and Falcon Heavy rockets.

<span class="mw-page-title-main">Crawler-transporter</span> NASA rocket transport vehicle

The crawler-transporters, formally known as the Missile Crawler Transporter Facilities, are a pair of tracked vehicles used to transport launch vehicles from NASA's Vehicle Assembly Building (VAB) along the Crawlerway to Launch Complex 39. They were originally used to transport the Saturn IB and Saturn V rockets during the Apollo, Skylab and Apollo–Soyuz programs. They were then used to transport Space Shuttles from 1981 to 2011. The crawler-transporters carry vehicles on the mobile launcher platforms used by NASA, and after each launch return to the pad to take the platform back to the VAB.

<span class="mw-page-title-main">Service structure</span> Structure built on a rocket launch pad to service launch vehicles

A service structure is a steel framework or tower that is built on a rocket launch pad to facilitate assembly and servicing.

<span class="mw-page-title-main">Kennedy Space Center Launch Complex 39</span> Historic Apollo Moonport

Launch Complex 39 (LC-39) is a rocket launch site at the John F. Kennedy Space Center on Merritt Island in Florida, United States. The site and its collection of facilities were originally built as the Apollo program's "Moonport" and later modified for the Space Shuttle program.

<span class="mw-page-title-main">Shuttle-derived vehicle</span> Launch vehicle built from Space Shuttle components

Shuttle-derived vehicles (SDV) are space launch vehicles and spacecraft that use components, technology, and infrastructure originally developed for the Space Shuttle program.

Space Shuttle missions designated STS-3xx were rescue missions which would have been mounted to rescue the crew of a Space Shuttle if their vehicle was damaged and deemed unable to make a successful reentry. Such a mission would have been flown if Mission Control determined that the heat shielding tiles and reinforced carbon-carbon panels of a currently flying orbiter were damaged beyond the repair capabilities of the available on-orbit repair methods. These missions were also referred to as Launch on Demand (LOD) and Contingency Shuttle Crew Support. The program was initiated following loss of Space Shuttle Columbia in 2003. No mission of this type was launched during the Space Shuttle program.

<span class="mw-page-title-main">Mobile launcher platform</span> Structure used to support large rockets

A mobile launcher platform (MLP), also known as mobile launch platform, is a structure used to support a large multistage space vehicle which is assembled (stacked) vertically in an integration facility and then transported by a crawler-transporter (CT) to a launch pad. This becomes the support structure for launch.

<span class="mw-page-title-main">Exploration Systems Architecture Study</span> NASA study

The Exploration Systems Architecture Study (ESAS) is the official title of a large-scale, system level study released by the National Aeronautics and Space Administration (NASA) in November 2005 of his goal of returning astronauts to the Moon and eventually Mars—known as the Vision for Space Exploration. The Constellation Program was cancelled in 2010 by the Obama Administration and replaced with the Space Launch System, later renamed as the Artemis Program in 2017 under the Trump Administration.

<span class="mw-page-title-main">Ares I</span> Canceled NASA rocket key to the Constellation program

Ares I was the crew launch vehicle that was being developed by NASA as part of the Constellation program. The name "Ares" refers to the Greek deity Ares, who is identified with the Roman god Mars. Ares I was originally known as the "Crew Launch Vehicle" (CLV).

<span class="mw-page-title-main">Launch Complex 39 Press Site</span> United States historic place

The Launch Complex 39 Press Site is a news media facility at Launch Complex 39 at the John F. Kennedy Space Center (KSC) on Merritt Island, Florida where journalists have observed every U.S. crewed space launch since Apollo 8 in 1968. The site is just south of the Vehicle Assembly Building (VAB); 3 miles (4.8 km) west-southwest of Pad A, and 3.4 miles (5.4 km) southwest of Pad B.

<span class="mw-page-title-main">Ares I-X</span> Prototype and design concept demonstrator rocket

Ares I-X was the first-stage prototype and design concept demonstrator of Ares I, a launch system for human spaceflight developed by the National Aeronautics and Space Administration (NASA). Ares I-X was successfully launched on October 28, 2009. The project cost was $445 million. It was the final launch from LC-39B until Artemis 1 13 years later.

<span class="mw-page-title-main">STS-400</span>

STS-400 was the Space Shuttle contingency support flight that would have been launched using Space ShuttleEndeavour if a major problem occurred on Space ShuttleAtlantis during STS-125, the final Hubble Space Telescope servicing mission.

<span class="mw-page-title-main">NASA Railroad</span> Short-line railroad at the Kennedy Space Center

The NASA Railroad is a Class III industrial short-line railroad at the Kennedy Space Center in Cape Canaveral, Florida. The railroad consists of 38 miles (61 km) of track connecting the mainline of the Florida East Coast Railway and trackage at the Cape Canaveral Space Force Station. NASA uses the railroad to deliver large or bulk materials to support its operations, particularly solid rocket boosters and chemicals such as helium and oxygen for rocket fuel.

<span class="mw-page-title-main">Space Shuttle retirement</span> End of NASA Space Shuttle program in 2011

The retirement of NASA's Space Shuttle fleet took place from March to July 2011. Discovery was the first of the three active Space Shuttles to be retired, completing its final mission on March 9, 2011; Endeavour did so on June 1. The final shuttle mission was completed with the landing of Atlantis on July 21, 2011, closing the 30-year Space Shuttle program.

<span class="mw-page-title-main">OmegA</span> Canceled US launch vehicle

OmegA was a medium-lift to heavy-lift launch vehicle concept that spent several years in development by Northrop Grumman during 2016–2020, with that development substantially funded by the U.S. government. OmegA was intended for launching U.S. national security satellites, as part of the U.S. Department of the Air Force National Security Space Launch (NSSL) replacement program.

<span class="mw-page-title-main">Exploration Ground Systems</span> NASA program for launch vehicle support

NASA's Exploration Ground Systems (EGS) Program is one of three programs based at NASA's Kennedy Space Center in Florida. EGS was established to develop and operate the systems and facilities necessary to process and launch rockets and spacecraft during assembly, transport and launch. EGS is preparing the infrastructure to support NASA's Space Launch System (SLS) rocket and its payloads, such as the Orion spacecraft for Artemis I. Artemis I is the first to launch in a series of increasingly complex missions that will enable human exploration to the Moon and Mars.

<span class="mw-page-title-main">Kennedy Space Center Launch Complex 48</span> Launch complex at Kennedy Space Center

Launch Complex 48 (LC-48) is a multi-user launch site for small launchers and spacecraft. It is located south of Launch Complex 39A and north of Space Launch Complex 41.

References

Sources

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  2. Bergin, Chris (May 30, 2017). "KSC's historic Pad 39B laying the foundations for hosting big rockets". NASASpaceFlight.com . Archived from the original on May 20, 2020. Retrieved May 20, 2020.

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