World Library  
Flag as Inappropriate
Email this Article

Titan IIIE

Article Id: WHEBN0021250074
Reproduction Date:

Title: Titan IIIE  
Author: World Heritage Encyclopedia
Language: English
Subject: List of missions to Mars, Titan IIIA, Commercial Titan III, Titan IIID, LGM-25C Titan II
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Titan IIIE

Titan IIIE

Launch of a Titan IIIE with Voyager 2
Function Expendable launch system
Manufacturer Martin Marietta
Country of origin  United States
Size
Height 48 metres (157 ft)
Diameter 3.05 metres (10.0 ft)
Mass 632,970 kilograms (1,395,460 lb)
Stages 3-4
Capacity
Payload to
LEO
15,400 kilograms (34,000 lb)
Payload to
Heliocentric orbit (TMI)
3,700 kilograms (8,200 lb)
Associated rockets
Family Titan
Launch history
Status Retired
Launch sites LC-41, Cape Canaveral
Total launches 7
Successes 6
Failures 1
First flight 11 February 1974
Last flight 5 September 1977
Notable payloads Voyager (1 / 2)
Viking (1 / 2)
Helios
Boosters (Stage 0) - UA1205
No boosters Two
Engines 1 solid
Thrust 5,849 kilonewtons (1,315,000 lbf)
Specific impulse 263 sec
Burn time 115 seconds
Fuel Solid
First Stage
Engines 2 LR87-11
Thrust 2,340 kilonewtons (530,000 lbf)
Specific impulse 302 sec
Burn time 147 seconds
Fuel A-50/N2O4
Second Stage
Engines 1 LR91-11
Thrust 454 kilonewtons (102,000 lbf)
Specific impulse 316 sec
Burn time 205 seconds
Fuel A-50/N2O4
Third Stage - Centaur-D
Engines 2 RL-10A-3
Thrust 131 kilonewtons (29,000 lbf)
Specific impulse 444 sec
Burn time 470 seconds
Fuel LH2/LOX
Fourth Stage (optional) - Star-37E
Engines 1 solid
Thrust 68 kilonewtons (15,000 lbf)
Specific impulse 284 sec
Burn time 42 seconds
Fuel Solid

The Titan IIIE or Titan 3E, also known as Titan III-Centaur was an American expendable launch system, launched seven times between 1974 and 1977.[1] It was used to launch several high-profile NASA missions, including the Voyager and Viking planetary probes, and the joint West German-US Helios spacecraft.

The Titan IIIE was a three-stage rocket, derived from the Titan IIIC. The primary difference was the replacement of the hypergolic Transtage third stage with the cryogenic Centaur-D upper stage to increase performance. It was the first Titan rocket to use a Centaur upper stage, which would later be used on the Titan IV. A four stage configuration, with an additional upper stage, a Star-37E, was also available, and was used for the two Helios launches.[2] Star-37E stages were also used on the two Voyager launches, but were considered to be part of the payload rather than the rocket.[3]

All seven launches were conducted from Launch Complex 41 at Cape Canaveral.

The first launch of a Titan IIIE (February 11, 1974) ended embarrassingly. Original plans were to fly a dummy Viking lander on the flight to test out the unproven booster combination, but NASA decided to piggyback it with a test satellite, SPHINX (Space Plasma High Voltage Interaction Experiment) designed to test the operation of high voltage power supplies in the vacuum of space. The Titan performed normally, but the Centaur's engines failed to start. Ground controllers waited and issued a manual start command 1:10 seconds later, but still nothing happened. 12 minutes after liftoff, the range safety destruct command was sent from a radar station in Antigua.

Launch History

Date/Time (GMT) S/N Payload Outcome Remarks
Titan Centaur
11 February 1974
13:48:02
23E-1 TC-1 Sphinx Failure Centaur LOX turbopump malfunction. RSO destruct at T+742 seconds.
10 December 1974
07:11:02
23E-2 TC-2 Helios-1 Successful
20 August 1975
21:22:00
23E-4 TC-4 Viking 1 Successful
9 September 1975
18:39:00
23E-3 TC-3 Viking 2 Successful
15 January 1976
05:34:00
23E-5 TC-5 Helios-2 Successful
20 August 1977
14:29:44
23E-7 TC-7 Voyager 2 Successful
5 September 1977
12:56:01
23E-6 TC-6 Voyager 1 Successful

Design

Schematics of Titan IIIE with two solid rocket motors (Stage 0) and the Titan III core vehicle Stages I and II


References

  1. ^ Wade, Mark. "Titan". Encyclopedia Astronautica. Retrieved 2009-01-25. 
  2. ^ Krebs, Gunter. "Titan-3E Centaur-D1T Star-37E". Gunter's Space Page. Retrieved 2009-01-25. 
  3. ^ Krebs, Gunter. "Titan-3E Centaur-D1T". Gunter's Space Page. Retrieved 2009-01-25. 

External links

Media related to at Wikimedia Commons

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.