Vanguard TV-2

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Vanguard TV-2
Vanguard TV-2 - 23 October 1957.jpg
The launch of the Vanguard TV-2 rocket
NamesVanguard Test Vehicle-2
Vanguard Test Vehicle-Two
Mission type Vanguard test flight
Operator Naval Research Laboratory
Mission durationSuborbital flight
Start of mission
Launch date23 October 1957, 06:05 GMT
Rocket Vanguard TV-2
Launch site Cape Canaveral, LC-18A
Contractor Glenn L. Martin Company
End of mission
Decay dateSuborbital flight
Orbital parameters
Altitude175 km (109 mi)
 
Vanguard rocket cutaway view, TV-2 had no fuel in stage 2 and 3. Vanguard rocket cutaway view.jpg
Vanguard rocket cutaway view, TV-2 had no fuel in stage 2 and 3.

Vanguard TV-2, also called Vanguard Test Vehicle-Two, was the third suborbital test flight of a Vanguard rocket as part of Project Vanguard. Successful TV-2 followed the successful launch of Vanguard TV-0 a one-stage rocket launched in December 1956 and Vanguard TV-1 a two-stage rocket launched in May 1957.

Contents

Project Vanguard was a program managed by the United States Naval Research Laboratory (NRL), and designed and built by the Glenn L. Martin Company (now Lockheed-Martin), which intended to launch the first artificial satellite into Earth orbit using a Vanguard rocket. [1] as the launch vehicle from Cape Canaveral Missile Annex, Florida.

Vanguard TV-2 arrived at Cape Canaveral in June 1957. Vanguard TV-2 was a prototype as it had a liquid rocket first stage, a dummy (no fuel) second stage, and a dummy (no fuel) third stage. Three Vanguard stages were needed to put a satellite in orbit, the final goal of the Vanguard project. Since stage two and three had no power the test flight would not achieve the same height as Vanguard TV-1.

Vanguard TV-2 lifted off on 23 October 1957 from Cape Canaveral from launch pad LC-18A. Launch pad 18A was an older Viking launch stand that was shipped from White Sands Missile Range for use at the Cape Canaveral. Pad 18A was also used on Vanguard TV-0 and TV-1. The goal of TV-2 was to test the final Vanguard first stage, as well as to test the retrorocket system of stage two and spin-up of stage three. Also new to test on TV-2 flight was a super high frequency (SHF) C-band radio beacon on the rocket and ground tracking radar gear, used to track proper propulsion and trajectory. The telemetry was picked up at the Air Force Missile Test Center's (AFMTC) tracking station.

Vanguard TV-2 was successful, the three stage rocket achieved an altitude of 175 km (109 mi), a down range of 539 km (335 mi), and a top speed of 6,840 km/h (4,250 mph). TV-2 landed in the Atlantic Ocean. First and second stage separated on time, all controls and tracking worked. The only problems TV-2 had were on the ground getting ready for the flight as there were many delays. TV-2 was shipped to the Cape not working (agreed and known by all parties). It took from early June to late October in 1957 at the Cape to work out all the problems that were not fixed in the manufacturing. For contrast TV-1 arrived at the cape in February 1956 and lifted off in early May 1956. The delay of TV-2 along with the failure of TV-3, put the United States behind in the Space Race. On 4 October 1957, 19 days before TV-2's lift off, a Soviet Union Sputnik rocket was used to perform the world's first satellite launch, taking away some of the joy of TV-2's success. [2] [3] [4] [5] [6] [7]

Background

Vanguard TV-0, Vanguard TV-1 and Vanguard TV-2 success was an important part of the Space Race. The Space Race started between United States and the Soviet Union at the end of World War II, as a race began to retrieve as many V-2 rockets and Nazi Germany V-2 staff as possible. [8] Three hundred rail-car loads of V-2 rocket weapons and parts were captured and shipped to the United States, also 126 of the principal designers of the V-2, including Wernher von Braun and Walter Dornberger, went to America. Von Braun, his brother Magnus von Braun, and seven others decided to surrender to the United States military in Operation Paperclip to ensure they were not captured by the advancing Soviets or shot dead by the Nazis to prevent their capture. [9] Thus the V-2 program started the Space Race, the V-2 could not orbit, but could reach a height of 88 km (55 mi) on long range trajectory and up to 206 km (128 mi) if launched vertically. [10] [11] [12]

Due to problems a delays with Vanguard TV-2 and failure of TV-3, Vanguard was not the first rocket to place into orbit an unmanned satellite. The first small-lift launch vehicle was the Sputnik rocket, it put into orbit an unmanned orbital carrier rocket designed by Sergei Korolev in the Soviet Union, derived from the R-7 Semyorka ICBM. On 4 October 1957, the Sputnik rocket was used to perform the world's first satellite launch, placing Sputnik 1 satellite into a low Earth orbit. [13] [14] [15]

The U.S. later responded by launching the Vanguard TV-4 with Vanguard 1 satellite. [1] [16] that was intended to be the first launch vehicle the United States would use to place a satellite into orbit. Instead, the Sputnik crisis caused by the surprise launch of Sputnik 1 led the U.S., after the failure of Vanguard TV-3, to quickly orbit the Explorer 1 satellite using a Juno I rocket launched on 1 February 1958. Thus Vanguard 1 was the second successful U.S. orbital launch. Thus started the Space Race, that gave the drive to put men on the Moon with the Apollo program. [17] [18]

See also

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Vanguard 2

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Vanguard 3

Vanguard 3 is a scientific satellite that was launched into Earth orbit by the Vanguard SLV-7 on 18 September 1959, the third successful Vanguard launch out of eleven attempts. Vanguard rocket: Vanguard Satellite Launch Vehicle-7 (SLV-7) was an unused Vanguard TV-4BU rocket, updated to the final production Satellite Launch Vehicle (SLV).

The Vanguard rocket was intended to be the first launch vehicle the United States would use to place a satellite into orbit. Instead, the Sputnik crisis caused by the surprise launch of Sputnik 1 led the U.S., after the failure of Vanguard TV-3, to quickly orbit the Explorer 1 satellite using a Juno I rocket, making Vanguard 1 the second successful U.S. orbital launch.

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Vanguard TV-3BU

Vanguard TV-3BU, also called Vanguard Test Vehicle-Three Backup, was the second flight of the American Vanguard rocket. An unsuccessful attempt to place an unnamed satellite, Vanguard 1B, into orbit, the rocket was launched on 5 February 1958. It was launched from LC-18A at the Cape Canaveral Air Force Station. Fifty-seven seconds after launch, control of the vehicle was lost and it failed to achieve orbit. At 57 seconds, the booster suddenly pitched down. The skinny second stage broke in half from aerodynamic stress, causing the Vanguard to tumble end-over-end before range safety officer sent the destruct command. The cause of the failure was attributed to a spurious guidance signal that caused the first stage to perform unintended pitch maneuvers. Vanguard TV-3BU only reached an altitude of 6.1 km (3.8 mi), the goal was 3,840 km (2,390 mi).

Vanguard TV-0

Vanguard TV-0, also called Vanguard Test Vehicle-Zero, was the first sub-orbital test flight of a Vanguard rocket as part of the Project Vanguard.

Vanguard TV-1

Vanguard TV-1, also called Vanguard Test Vehicle-One, was the second sub-orbital test flight of a Vanguard rocket as part of the Project Vanguard. Vanguard TV-1 followed the successful launch of Vanguard TV-0 a one-stage rocket launched in December 1956.

Vanguard TV-5 Failed rocket launch

Vanguard TV-5, also called Vanguard Test Vehicle-Five, was a failed flight of the American Vanguard rocket following the successful launch of Vanguard 1 on Vanguard TV-4. Vanguard TV-5 launched on 29 April 1958 at 02:53:00 GMT, from Launch Complex 18A at the Cape Canaveral Air Force Station. The rocket was unsuccessful in its attempt to place an unnamed satellite into orbit.

Vanguard SLV-1 Failed rocket launch

Vanguard SLV-1, also called Vanguard Satellite Launch Vehicle-1 was hoped to be the second successful flight of the American Vanguard rocket following the successful launch of the Vanguard 1 satellite on rocket Vanguard TV-4 in March 1958.

Vanguard SLV-2 Failed rocket launch

Vanguard SLV-2, also called Vanguard Satellite Launch Vehicle-2 hoped to be the second successful flight of the American Vanguard rocket following successful Vanguard 1 satellite on rocket Vanguard TV-4.

Vanguard SLV-3 Failed rocket launch

Vanguard SLV-3, also called Vanguard Satellite Launch Vehicle-3 hoped to be the second successful flight of the American Vanguard rocket following successful Vanguard 1 satellite on rocket Vanguard TV-4.

Vanguard SLV-5 Failed rocket launch

Vanguard SLV-5, also called Vanguard Satellite Launch Vehicle-Five hoped to be the third successful flight of the American Vanguard rocket following the successful Vanguard 2 satellite on rocket Vanguard SLV-4.

Vanguard SLV-6 Failed rocket launch

Vanguard SLV-6, also called Vanguard Satellite Launch Vehicle-Six, hoped to be the third successful flight of the American Vanguard rocket following the successful Vanguard 2 satellite on rocket Vanguard SLV-4. Vanguard Satellite Launch Vehicle-6 (SLV-6) was designed to carry a small spherical satellite into Earth orbit to study solar heating of Earth and the heat balance. A faulty second stage pressure valve caused a mission failure.

References

  1. 1 2 "The Vanguard Satellite Launching Vehicle — An Engineering Summary" B. Klawans April 1960, 212 pages Martin Company Engineering Report No 11022 PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  2. ↑ "NASA History, Chapter 10". history.nasa.gov. NASA. Retrieved 24 December 2015.PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  3. ↑ Vanguard: A History, By Constance McLaughlin Green and Milton Lomask PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  4. ↑ "U.S. space-rocket liquid propellant engines". b14643.de. Archived from the original on 1 November 2015. Retrieved 24 June 2015.
  5. ↑ Winter, Frank H. (1990). "Chapter 3 — Rockets Enter the Space Age". Rockets Into Space . Harvard University Press. p.  66 . Retrieved 24 June 2015.
  6. ↑ Vanguard: A History, page 282, By Constance McLaughlin Green and Milton Lomask PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  7. ↑ "Vanguard". astronautix.com. Archived from the original on 30 October 2013. Retrieved 24 December 2015.
  8. ↑ "We Want with the West", Time Magazine, 9 December 1946.
  9. ↑ "Wernher von Braun" . Retrieved 4 July 2009.PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  10. ↑ "Bumper Project". White Sands History - Fact Sheets and Articles. U.S. Army. Archived from the original on 10 January 2008. Retrieved 2 December 2007.PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  11. ↑ "Long-range" in the context of the time. See NASA history article. Archived 2009-01-07 at the Wayback Machine PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  12. ↑ Neufeld, Michael J. (1995). The Rocket and the Reich: Peenemünde and the Coming of the Ballistic Missile Era . New York: The Free Press. pp.  158 160–2, 190.
  13. ↑ "Display: Sputnik 1 1957-001B". NASA. 14 May 2020. Retrieved 9 February 2021.PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  14. ↑ "Sputnik launch vehicle 8K71PS (M1-1PS)". Russian Space Web. Retrieved 24 December 2015.
  15. ↑ (in Russian) Sputnik Rocket
  16. ↑ "Vanguard Project - U.S. Naval Research Laboratory". nrl.navy.mil. Retrieved 24 December 2015.PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  17. ↑ Kennedy, John F. (20 April 1961). "Memorandum for Vice President". The White House (Memorandum). Boston, Maine: John F. Kennedy Presidential Library and Museum. Retrieved 1 August 2013.
  18. ↑ Launius, Roger D. (July 1994). "President John F. Kennedy Memo for Vice President, 20 April 1961" (PDF). Apollo: A Retrospective Analysis. Monographs in Aerospace History Number 3. Washington, D.C.: NASA. OCLC   31825096 . Retrieved 1 August 2013. Key Apollo Source Documents PD-icon.svgThis article incorporates text from this source, which is in the public domain.

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