Shuttle-Derived Vehicle

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Comparison of Saturn V, Shuttle, Ares I, Ares V, Ares IV, and SLS Block 1 Saturn V-Shuttle-Ares I-Ares V-Ares IV-SLS Block 1 comparison (2019).png
Comparison of Saturn V, Shuttle, Ares I, Ares V, Ares IV, and SLS Block 1

Shuttle-Derived Launch Vehicle (SDLV), or simply Shuttle-Derived Vehicle (SDV), is a term describing one of an array of concepts that have been developed for building space launch vehicles using the already developed components, technology, and infrastructure of the Space Shuttle program.

Contents

In the late 1980s and early 1990s, NASA formally studied a cargo-only vehicle, Shuttle-C, that would have supplemented the crewed Space Shuttle. In 2005, NASA was developing the Ares I and Ares V launch vehicles, based in part on highly modified Shuttle components, to enable exploration of the Moon and Mars. [1] [2] The agency also studied a third such vehicle, the Ares IV.

Concepts

SDV concepts are/were proposed even before the Space Shuttle itself began flying.

Shuttle-C

The Shuttle-C was a study by NASA to turn the Space Shuttle launch stack into a dedicated uncrewed cargo launcher. The Space Shuttle external tank and Space Shuttle Solid Rocket Boosters (SRBs) would be combined with a cargo module in place of the shuttle orbiter including the RS-25 engines. Various Shuttle-C concepts were investigated between 1984 and 1995. [3]

National Launch System

The National Launch System (or New Launch System) was a study authorized in 1991 by President George H. W. Bush to outline alternatives to the Space Shuttle for access to Earth orbit. [4] Shortly thereafter, NASA asked Lockheed Missiles and Space, McDonnell Douglas, and TRW to perform a ten-month study. [5]

A series of launch vehicles was proposed, based around the proposed Space Transportation Main Engine (STME) liquid-fuel rocket engine. The STME was to be a simplified, expendable version of the Space Shuttle main engine (SSME). [6] [7] The NLS-1 was the largest of three proposed vehicles and would have used a modified Space Shuttle external tank for its core stage. The tank would have fed liquid oxygen and liquid hydrogen to four STMEs attached to the bottom of the tank. A payload or second stage would have fit atop the core stage, and two detachable Space Shuttle Solid Rocket Boosters would have been mounted on the sides of the core stage as on the Shuttle. [6] Period illustrations suggest that much larger rockets than NLS-1 were contemplated, using multiples of the NLS-1 core stage. [8] [9]

Constellation program

Comparison of the Ares I, Ares IV, and Ares V rockets. AresFamily.jpg
Comparison of the Ares I, Ares IV, and Ares V rockets.

One of the main goals of Constellation program was the development of spacecraft and booster vehicles to replace the Space Shuttle. NASA had already begun designing two boosters, the Ares I and Ares V, when the program was created. Ares I was designed for the sole purpose of launching mission crews into orbit, while Ares V would have been used to launch other hardware which required a heavier lift capacity than the Ares I booster provided. [10]

Ares I

Ares I was the crew launch vehicle that was being developed by NASA as part of the Constellation program. [11] The name "Ares" refers to the Greek deity Ares, who is identified with the Roman god Mars. [12] Ares I was originally known as the "Crew Launch Vehicle" (CLV). [13]

NASA planned to use Ares I to launch Orion, the spacecraft intended for NASA human spaceflight missions after the Space Shuttle was retired in 2011. Ares I was to complement the larger, uncrewed Ares V, which was the cargo launch vehicle for Constellation. NASA selected the Ares designs for their anticipated overall safety, reliability and cost-effectiveness. [14] However, the Constellation program, including Ares I was cancelled by U.S. president Barack Obama in October 2010 with the passage of his 2010 NASA authorization bill.

Ares V

The Ares V (formerly known as the Cargo Launch Vehicle or CaLV) was the planned cargo launch component of the cancelled NASA Constellation program, which was to have replaced the Space Shuttle after its retirement in 2011. Ares V was also planned to carry supplies for a human presence on Mars. [15] Ares V and the smaller Ares I were named after Ares, the Greek god of war.

The Ares V was to launch the Earth Departure Stage and Altair lunar lander for NASA's return to the Moon, which was planned for 2019. [16] It would also have served as the principal launcher for missions beyond the Earth-Moon system, including the program's ultimate goal, a crewed mission to Mars. The uncrewed Ares V would complement the smaller, and human-rated Ares I rocket for the launching of the 4–6 person Orion spacecraft. Both rockets, deemed safer than the then-current Space Shuttle, would have employed technologies developed for the Apollo program, the Shuttle program, and the Delta IV EELV program. [14] However, the Constellation program, including Ares V was cancelled by U.S. president Barack Obama in October 2010 with the passage of his 2010 NASA authorization bill.

Ares IV

The Ares IV concept combines an Ares I upper stage on top of an Ares V. [17] Specifically, the vehicle would consist of the liquid-fueled core stage from the Ares V design, two five-segment solid rocket boosters, and the liquid-fueled upper stage from the Ares I, as described by NASA in January 2007. The Ares IV would be a combined 367 ft (112 m) tall and could be used to reach the Moon. Total payload capacity would be 90,420 lb (41,000 kg) to 240 miles (390 km) for direct trans-lunar injection. [18]

NASA had considered using Ares IV to evaluate high-speed "skip" reentry profiles of the Orion capsule in 2007. [19] NASA had planned flight demonstrations of Ares I and Ares V hardware in "Heavy Lift" configurations beginning in 2013. The "Heavy Lift" test flights were to test the first stage of the Ares V simultaneously with the Ares I upper stage attached on top to save both time and money. The later Heavy Lift test vehicle configurations are similar to the Ares IV vehicle. [20]

Ares V Lite

Ares V Lite was an alternative launch vehicle for NASA's Constellation program suggested by the Augustine Commission. Ares V Lite was a scaled down Ares V. [21] [22] It would have used five RS-68 engines and two five-segment SRBs and have had a low Earth orbit payload of approximately 140 tonnes (310,000 lb). [23] If chosen, Ares V Lite would have replaced the Ares V and Ares I launchers. One Ares V Lite version would have been a cargo lifter like Ares V and the second version would have carried astronauts in the Orion spacecraft. [23]

NASA Side-Mount Vehicle

The Shuttle-Derived Heavy Lift Launch Vehicle (HLV) was an alternate super heavy-lift launch vehicle proposal for the NASA Constellation program. It was first presented to the Augustine Commission on 17 June 2009.

Based on the Shuttle-C concept which has been the subject of various studies since the 1980s, the HLV was a SDLV that proposed to replace the winged Orbiter from the Space Shuttle stack with a side-mounted payload carrier. The Space Shuttle external tank (ET) and Space Shuttle Solid Rocket Boosters (SRBs) would have remained the same.

Jupiter

The Jupiter family of super heavy-lift launch vehicles was part of the proposed DIRECT Shuttle-Derived Launch Vehicle architecture. It was intended to be the alternative to the Ares I and Ares V rockets.[ citation needed ]

Major benefits were projected from re-using as much hardware and facilities from the Space Shuttle program as possible, including cost savings, experience with existing hardware, and preserving the workforce.[ citation needed ]

Space Launch System

The Space Launch System (SLS) is a US super heavy-lift expendable launch vehicle, which is under development as of August 2019. It is the primary launch vehicle of NASA's deep space exploration plans, [24] [25] including the planned crewed lunar flights of the Artemis program and a possible follow-on human mission to Mars. [26] [27] [28]

Liberty

Liberty was a 2011 launch vehicle concept proposed by Alliant Techsystems (ATK) and Astrium for phase 2 of the NASA Commercial Crew Development (CCDev) program intended to stimulate development of privately operated crew vehicles to low Earth orbit.

Similar to the defunct Ares I project, which consisted of a five segment Space Shuttle Solid Rocket Booster (SRB) and a new cryogenic second stage, Liberty would combine a five-segment SRB with the core stage of the European Ariane 5 as a second stage. [29] [30]

Related Research Articles

Space Shuttle program 1972–2011 United States human spaceflight program, aimed at crewed scientific and logistical missions in low Earth orbit

The Space Shuttle program was the fourth human spaceflight program carried out by the National Aeronautics and Space Administration (NASA), which accomplished routine transportation for Earth-to-orbit crew and cargo from 1981 to 2011. Its official name, Space Transportation System (STS), was taken from a 1969 plan for a system of reusable spacecraft of which it was the only item funded for development.

Constellation program Cancelled 2005–2010 United States human spaceflight program, aimed at crewed exploration of the Moon, Mars, and minor planets

The Constellation Program is a cancelled crewed spaceflight program developed by NASA, the space agency of the United States, from 2005 to 2009. The major goals of the program were "completion of the International Space Station" and a "return to the Moon no later than 2020" with a crewed flight to the planet Mars as the ultimate goal. The program's logo reflected the three stages of the program: the Earth (ISS), the Moon, and finally Mars—while the Mars goal also found expression in the name given to the program's booster rockets: Ares. The technological aims of the program included the regaining of significant astronaut experience beyond low Earth orbit and the development of technologies necessary to enable sustained human presence on other planetary bodies.

Space Shuttle Solid Rocket Booster Solid propellant rocket used to launch Space Shuttle orbiter.

The Space Shuttle Solid Rocket Booster was the first solid-propellant rocket to be used for primary propulsion on a vehicle used for human spaceflight and provided the majority of the Space Shuttle's thrust during the first two minutes of flight. After burnout, they were jettisoned and parachuted into the Atlantic Ocean where they were recovered, examined, refurbished, and reused.

Space Shuttle external tank component of the Space Shuttle launch vehicle

The Space Shuttle external tank (ET) was the component of the Space Shuttle launch vehicle that contained the liquid hydrogen fuel and liquid oxygen oxidizer. During lift-off and ascent it supplied the fuel and oxidizer under pressure to the three RS-25 main engines in the orbiter. The ET was jettisoned just over 10 seconds after main engine cut-off (MECO) and it re-entered the Earth's atmosphere. Unlike the Solid Rocket Boosters, external tanks were not re-used. They broke up before impact in the Indian Ocean, away from shipping lanes and were not recovered.

Shuttle-C

The Shuttle-C was a study by NASA to turn the Space Shuttle launch stack into a dedicated uncrewed cargo launcher. The Space Shuttle external tank and Space Shuttle Solid Rocket Boosters (SRBs) would be combined with a cargo module that take the place of the Shuttle orbiter and include the main engines. Various Shuttle-C concepts were investigated between 1984 and 1995.

Exploration Systems Architecture 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 in response to American president George W. Bush's announcement on January 14, 2004 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 Artemis Program in 2017 under the Trump Administration.

The Earth Departure Stage (EDS) is the name given to the proposed second stage of the Block 2 Space Launch System. The EDS is intended to boost the rocket's payload into a parking orbit around the Earth and from there send the payload out of low Earth orbit to its destination in a manner similar to that of the S-IVB rocket stage used on the Saturn V rockets that propelled the Apollo spacecraft to the Moon. Its development has been put on hold until stages capable of transferring heavy payloads to Mars are required.

Ares V Canceled project of future NASA rocket from project Constellation.

The Ares V was the planned cargo launch component of the cancelled NASA Constellation program, which was to have replaced the Space Shuttle after its retirement in 2011. Ares V was also planned to carry supplies for a human presence on Mars. Ares V and the smaller Ares I were named after Ares, the Greek god of war.

Ares I Canceled project of future NASA rocket of project Constellation.

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).

DIRECT was a late-2000s proposed alternative super heavy lift launch vehicle architecture supporting NASA's Vision for Space Exploration that would replace the space agency's planned Ares I and Ares V rockets with a family of Shuttle-Derived Launch Vehicles named "Jupiter".

Shuttle-Derived Heavy Lift Launch Vehicle

The Shuttle-Derived Heavy Lift Launch Vehicle ("HLV") was an alternate super heavy-lift launch vehicle proposal for the NASA Constellation program. It was first presented to the Augustine Commission on 17 June 2009.

Jupiter (rocket family) family of Heavy Lift Launch Vehicles

The Jupiter family of super heavy-lift launch vehicles was part of the proposed DIRECT Shuttle-Derived Launch Vehicle architecture. It was intended to be the alternative to the Ares I and Ares V rockets which were under development for the US Project Constellation.

Space policy of the Barack Obama administration

The space policy of the Barack Obama administration was announced by U.S. President Barack Obama on April 15, 2010, at a major space policy speech at Kennedy Space Center. He committed to increasing NASA funding by $6 billion over five years and completing the design of a new heavy-lift launch vehicle by 2015 and to begin construction thereafter. He also predicted a U.S.-crewed orbital Mars mission by the mid-2030s, preceded by the Asteroid Redirect Mission by 2025. In response to concerns over job losses, Obama promised a $40 million effort to help Space Coast workers affected by the cancellation of the Space Shuttle program and Constellation program.

Space Shuttle retirement End of NASAs Space Shuttle spacecraft system 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.

Liberty (rocket) Launch vehicle design

Liberty was a 2011 launch vehicle concept proposed by Alliant Techsystems (ATK) and Astrium for phase 2 of the NASA Commercial Crew Development (CCDev) program intended to stimulate development of privately operated crew vehicles to low Earth orbit.

Space Launch System US Space Shuttle-derived heavy expendable launch vehicle

The Space Launch System (SLS) is planned to be a US super heavy-lift expendable launch vehicle, which has been under development since its announcement in 2011. It is the primary launch vehicle of NASA's deep space exploration plans, including the planned crewed lunar flights of the Artemis program and a possible follow-on human mission to Mars. SLS replaces the Constellation program's Ares V launch vehicle of 2005, which never left the development phase.

Super heavy-lift launch vehicle Launch vehicle capable of lifting more than 50 tonnes

A super heavy-lift launch vehicle (SHLLV) is a launch vehicle capable of lifting more than 50 tonnes (110,000 lb) of payload into low Earth orbit (LEO).

OmegA US launch vehicle

OmegA is a launch vehicle in development by Northrop Grumman as an NSSL replacement program intended for national security and commercial satellites.

Studied Space Shuttle variations and derivatives

During the lifetime of NASA's Space Shuttle, Rockwell International and many other organizations studied different Space Shuttle variations and derivatives. These studies included different ways to increase shuttle payload capability, crew capacity, and developing standalone reusable launch vehicles. A large focus of the program was towards new shuttle boosters and an upgrades to the external tank but also looked to expand NASA's ability to launch deep space missions and build large modular space stations. Many of these concepts and studies would shape the concepts and programs of the 2000s such as Constellation, Orbital Space Plane Program, and Artemis program.

Shuttle-derived vehicle Launch vehicles and spacecraft supposed to be derived from the Space Shuttle.

The Shuttle-derived vehicles (SDV) are concepts that have been developed for building spacecraft using the already developed components, technology, and infrastructure of the Space Shuttle program.

References

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  29. Canceled NASA Rocket Could Return as Part of Low-Cost Space Taxi
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Further reading