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Atlas SLV-3

American launch vehicle manufactured by General Dynamics

Summary

American launch vehicle manufactured by General Dynamics

FieldValue
nameAtlas SLV-3
manufacturerConvair Division of
General Dynamics
functionExpendable launch system
country-originUnited States
statusRetired
sitesCape Kennedy, LC-14
Vandenberg, SLC-3E
success57
fail6
launches63
first1 June 1966
last19 May 1983

General Dynamics |country-origin = United States Vandenberg, SLC-3E The Atlas SLV-3, or SLV-3 Atlas was an American expendable launch system derived from the SM-65 Atlas / SM-65D Atlas missile. It is not a member of the Atlas family of rockets.

The Atlas SLV-3 was a stage and a half rocket, built as a standardized replacement for earlier Atlas launch systems, which had been derived from the various Atlas missiles.

Most space launcher variants of the Atlas up to 1965 were derived from the D-series Atlas ICBM with custom modifications for the needs of the particular mission. The SLV-3 would use a standardized configuration based on the Atlas D missile for all launches with the exception of different widths for the top of the rocket depending on the upper stage being flown.

The SLV-3 had thicker gauge tank walls to support the weight of upper stages as well as upgraded engines and removal of unneeded ICBM hardware such as retrorockets. Although the main engines had greater thrust, the verniers were detuned slightly in the interest of improved ISP (vacuum specific impulse).

Variants of the SLV-3 flew until 2005 when the legacy Atlas was retired from service and replaced by the Atlas V, a completely new vehicle with conventional aircraft-style construction and different engines.

Versions

The following versions of the launch system were produced:

Baseline

The standard Atlas-Agena vehicle is best known for launching the Augmented Target Docking Adapter (ATDA) in support of the Gemini 9A mission. This occurred on 1 June 1966, and was the first flight of the Atlas SLV-3 as an independent vehicle. The ATDA failed because the payload shroud did not detach.

The rocket was also used for three suborbital tests of X-23 PRIME reentry vehicles. A leftover SLV-3 from the PRIME program was used to launch a collection of small scientific satellites from VAFB's SLC-3E on August 16, 1968.

Most Atlas-Agena SLV-3s were used for classified DoD payloads, especially KH-7 GAMBIT.{{cite book|title=Assured Access: A History of the United States Air Force Space Launch Enterprise, 1945–2020|author1=David N. Spires|url=https://www.airuniversity.af.edu/Portals/10/AUPress/Books/B_173_Spires_Assured_Access_.pdf

A Burner II upper stage could be used to increase payload.

Details

  • Thrust (pounds): 389,000
  • Booster ISP: 252.5
  • Sustainer ISP: 214.2
  • Vernier ISP: 190.9/237.7
  • Main impulse propellants (pounds): 246,549
  • Launch weight (pounds): 260,928
  • Booster jettison weight (pounds): 7,368
  • Sustainer jettison weight (pounds): 6,569

File:ATDA atop Atlas launch vehicle launched from Kennedy Space Center.jpg|ATDA launch, June 1, 1966 (Atlas 5304) File:Atlas SLV-3.jpg|PRIME launch, August 16, 1968 (Atlas 7004) File:Atlas SLV-3 Agena D with KH-7 11 (23 September 1964).jpg|KH-7 11 launch, 23 September 1964 (Atlas 7102)

SLV-3A

SLV-3A was the baseline SLV-3 with extended propellant tanks for longer burn time. It was used to launch OGO 5 in 1968, all remaining launches being classified Aquacade (Canyon/Rhyolite) SIGINT satellites. All launches took place from LC-13 at Cape Canaveral.

Details

  • Thrust (pounds): 395,000
  • Booster ISP: 258.9/296.8
  • Sustainer ISP: 215.3/308.9
  • Vernier ISP: 190.9/237.7
  • Main impulse propellants (pounds): 295,356
  • Launch weight (pounds): 310,073
  • Booster jettison weight (pounds): 7,464
  • Sustainer jettison weight (pounds): 6,805 File:Atlas-SLV3A Agena-D (Rhyolite 3 - Aquacade 3).jpg|Rhyolite 3 - Aquacade 3 launch (Atlas 5504A) File:Atlas-SLV3A Agena-D (Canyon 7).jpg|Canyon 7 launch (Atlas 5507A) File:Atlas-SLV3A Agena-D (OGO 5).jpg|OGO 5 launch (Atlas 5602A)

SLV-3B

SLV-3B was a one-off Atlas used to launch the first OAO satellite, which consisted of the SLV-3C Atlas with the Agena and payload enclosed in a full-width fairing. The configuration was launched once, on August 4, 1966, from Cape Canaveral Launch Complex 12 to deliver the OAO satellite to orbit. File:Atlas-SLV3B Agena-D (OAO 1).jpg|OAO-1 launch (Atlas 5001)

SLV-3C

SLV-3C was the standard Atlas-Centaur booster, without the tapered forward section to accommodate the smaller Agena stage. The Atlas Centaur effort started in 1958 at the Advanced Research Projects Agency. On establishment of NASA, the effort transferred to NASA and ultimately under the auspices of the NASA Lewis Research Center. General Dynamics Convair division was contracted to make modifications to the Atlas booster and design the cryogenic Centaur upper stage with the engines for the upper stage being furnished as Government Furnished Equipment via a separate contract between the U.S. Government and Pratt & Whitney.

Atlas Centaur (SLV-3C) was designed to deliver the Surveyor moon lander missions to soft landings on the lunar surface as part of the buildup for the Apollo program.

File:Mariner 7 launch (KSC-69P-223).jpg|Mariner 7 launch (AC-19) File:Surveyor-6 launch.jpg|Surveyor 6 launch (AC-14) File:Atlas I-CENTAUR.jpg|Mariner 9 launch (AC-26)

Atlas SLV-3D

SLV-3D had the same Atlas core as SLV-3C, with an enhanced Centaur stage. The SLV-3D model used an upgraded Centaur D1A to launch the Pioneer 11 spacecraft to Jupiter and Saturn. It was also used to launch four U.S. Navy FLTSATCOM communications satellites to geosynchronous transfer orbit.

File:Atlas SLV-3D diagram.png|Atlas SLV-3D diagram File:Atlas-Centaur with Mariner 10 at LC 36B.jpg|Mariner 10 launch (AC-34) File:Pioneer G (Pioneer 11) launch.jpg|Pioneer 11 launch (AC-30)

References

References

  1. "Encyclopedia Astronautica - Atlas".
  2. (January 20, 2005). "Atlas rockets bid farewell to Complex 36 after 40 years". Spaceflight Now.
  3. Krebs, Gunter D.. "Atlas Family".". Gunter's Space Page.
  4. "Advanced Atlas Launch Vehicle DIGEST". Convair Division of General Dynamics.
  5. "On The Shoulders of Titans - Chap. 14".
  6. (1991). "Kennedy Space Center Story".
  7. Krebs, Gunter D.. "PRIME (SV-5D)". Gunter's Space Page.
  8. Krebs, Gunter D.. "Atlas-SLV3 Burner-2". Gunter's Space Page.
  9. Krebs, Gunter D.. "Atlas-SLV3B Agena-D"". Gunter's Space Page.
  10. "Centaur Program Overview". NASA.
  11. (April 2015). "Reflections on Centaur Upper Stage Integration by the NASA Lewis (Glenn) Research Center". NASA.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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