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Delta 2000 series
Size
Launch of IUE on a Delta 2914 J-8
Function	Expendable launch system
Country of origin	United States
Height	35 m (114 ft)
Diameter	2.44 m (8 ft)
Mass	130,392 kg (287,465 lb)
Payload to GTO (Geostationary transfer orbit)
Mass	724 kg

Launch history
Status	Retired
Launch sites	Cape Canaveral, LC-17 Vandenberg, SLC-2W
Total launches	44
Success(es)	43
Failure(s)	1
First flight	19 January 1974
Last flight	6 October 1981
Booster stage
Powered by	9 x Castor 2
Maximum thrust	258.915 kilonewtons (58,206 lb_f)
Burn time	37 seconds
Propellant	Solid
First stage
Powered by	1 x Delta-Thor RS-27
Maximum thrust	1,030.218 kilonewtons (231,602 lb_f)
Burn time	223 seconds
Propellant	RP-1/LOX
Second stage
Powered by	1 x Delta P
Maximum thrust	41.923 kilonewtons (9,425 lb_f)
Burn time	322 seconds
Propellant	N₂O₄/Aerozine-50
Third stage
Powered by	1 x Burner II
Maximum thrust	43.551 kilonewtons (9,791 lb_f)
Burn time	42 seconds
Propellant	Solid

[edit on Wikidata]

The Delta 2000 series was an American expendable launch system which was used to conduct forty-four orbital launches between 1974 and 1981. It was a member of the Delta family of rockets, sometimes called Thorad Delta. Several variants existed, which were differentiated by a four digit numerical code. The Delta 1000, 2000 and 3000 series used surplus NASA Apollo program rockets engines for its first and second stages.

The first stage was an Extended Long Tank Thor, re-engined with the Rocketdyne RS-27 replacing the earlier MB-3-III engine. The RS-27 engine was a rebranded H-1 engine used in the Saturn 1B with minor changes. Three or nine Castor-2 solid rocket boosters were attached to increase thrust at lift-off. The Delta-P second stage used the TRW TR-201 engine. The TR-201 engine was a Lunar Module Descent Engine reconfigured for fixed thrust output. Launches which required a three-stage configuration in order to reach higher orbits used the Thiokol Star-37D or Star-37E upper stage as an apogee kick motor.

Delta 2000 launches occurred from Space Launch Complex 2W at Vandenberg AFB and both pads of Launch Complex 17 at Cape Canaveral. Forty-three out of forty-four launches were successful. The single failure being the maiden flight, 19 January 1974, which placed Skynet 2A into a useless orbit. A short circuit in an electronics package circuit board (on second stage) left the upper stages and satellite in an unstable low orbit (96 x 3,406 km x 37.6°) that rapidly decayed. An investigation revealed that a substandard coating had been used on the circuit board.^[1]

The cost of each launch was estimated on average at $28.52 million, depending on the combination of carrier rocket.

References

[edit]

^ Kyle, Ed (9 April 2010). "Delta 2000 series - Extended Long Tank Delta". Space Launch Report. Retrieved 7 June 2012.

Wade, Mark. "Delta". Encyclopedia Astronautica. Archived from the original on 2008-07-24. Retrieved 2009-02-15.
Krebs, Gunter. "Thor family". Gunter's Space Page. Retrieved 2009-02-15.

v t e Orbital launch systems
List of orbital launch systems Comparison of orbital launch systems
Current	Angara 1.2 A5 Ariane 6 Atlas V Ceres 1 1S Chollima-1 Electron Falcon 9 Block 5 Falcon Heavy Firefly Alpha Gravity-1 GSLV H-IIA H3 Hyperbola-1 Jielong 1 3 KAIROS^† Kaituozhe 2 Kinetica 1 Kuaizhou 1 1A 11 Long March 2C 2D 2F 3A 3B/E 3C 4B 4C 5 5B 6 6A 7 7A 8 11 11H LVM3 Minotaur I IV V C Nuri OS-M1^† Pegasus XL Proton-M PSLV Qaem 100 Qased Shavit 2 Simorgh SLS Block 1 Soyuz-2 2.1a / STA 2.1b / STB 2-1v SSLV Starship Tianlong-2 Unha Vega C Vulcan Centaur Zhuque 2
In development	Antares 330 Bloostar Cyclone-4M Deca Epsilon S Eris Gravity-2 Hyperbola-2 Irtysh Kuaizhou 21 31 Long March 9 10 12 Miura 5 MLV Neutron New Glenn New Line 1 NGLV Nova OS-M 2 4 Orbex Prime Pallas-1 Red Dwarf SLS Block 1B Block 2 Soyuz-7 Terran R Tianlong-3 VLM Vega E Zero Zhuque 3 Zuljanah
Retired	Antares 110 120 130^† 230 230+ Ariane 1 2 3 4 5 ASLV Athena I II Atlas B D E/F G H I II III LV-3B SLV-3 Able^† Agena Centaur Black Arrow Conestoga^† Delta A B C D E G J L M N 0100 1000 2000 3000 4000 5000 II III IV IV Heavy Diamant Dnepr Energia Epsilon Europa I^† II^† Falcon 1 Falcon 9 v1.0 v1.1 v1.2 "Full Thrust" Feng Bao 1 GSLV Mk I H-I H-II H-IIB Juno I Juno II Kaituozhe-1 Kosmos original 1 2/2I 3 3M Lambda 4S LauncherOne Long March 1 1D^† 2A 2E 3 3B 4A Mu 4S 3C 3H 3S 3SII V N1^† N-I N-II Naro-1 Paektusan^† Pilot-2^† R-7 Luna Molniya M L Polyot Soyuz original FG L M U U2 Soyuz/Vostok Sputnik Voskhod Vostok L K 2 2M R-29 Shtil' Volna^† Rocket 3 RS1^† Safir 1 1A 1B Saturn I IB V Scout X-1 Blue Scout II^† X-2^† X-2M X-3 X-3M X-4 X-2B^† B A B-1 D-1 A-1 E-1 F-1 G-1 Shavit original 1 SLV Space Shuttle SPARK^† Sparta SS-520 Start-1 Terran 1^† Thor Able Ablestar 1 2 Agena A B D Burner 1 2 Delta DSV-2U Thorad-Agena SLV-2G SLV-2H Titan II GLV IIIA IIIB IIIC IIID IIIE 34D 23G CT-3 IV Tsyklon R-36-O original 2 3 Universal Rocket UR-500 Proton Proton-K Rokot Strela Vanguard Vega original VLS-1^† Zenit 2 2M 2FG 3SL 3SLB 3F Zhuque 1^†
Classes	Sounding rocket Small-lift launch vehicle Medium-lift launch vehicle Heavy-lift launch vehicle Super heavy-lift launch vehicle
This Template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future Symbol ^† indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)

v t e Orbital launch systems developed in the United States
Active	Atlas V**^†† Electron Falcon 9 Block 5 Falcon Heavy Firefly Alpha Minotaur I IV V C Pegasus XL SLS Block 1 Vulcan Centaur
In development	Antares 330 Daytona I MLV New Glenn Neutron Nova Red Dwarf SLS Block 1B Block 2 Starship Terran R
Retired	Antares 110/120/130/230/230+^††† Athena I II Atlas B D E/F G H I II III LV-3B SLV-3 Able Agena Centaur Conestoga Delta A B C D E G J L M N 0100 1000 2000 3000 4000 5000 II III IV IV Heavy Falcon 1 Falcon 9 v1.0 v1.1 v1.2 "Full Thrust" H-I* Juno I Juno II LauncherOne N-I* N-II* Pilot Rocket 3 RS1^† Saturn I IB V Scout Space Shuttle SPARK Sparta Terran 1 Thor Able Ablestar Agena Burner Delta DSV-2U Thorad-Agena Titan II GLV IIIA IIIB IIIC IIID IIIE 34D 23G CT-3 IV Vanguard
* - Japanese projects using US rockets or stages ** - uses Russian engines ^† - never succeeded ^†† - no new orders accepted ^††† - used Ukrainian first stage

Thor and Delta rockets

Rockets

Thor

Delta

Alphabetical	Delta A Delta B Delta C Delta D Delta E Delta F Delta G Delta J Delta L Delta M Delta N
Numerical	Delta 0100 Delta 1000 Delta 2000 Delta 3000 Delta 4000 Delta 5000 Delta 6000 Delta 7000 Delta 8000 Delta 9000
Modern	Delta II Delta III Delta IV Delta IV Heavy

Export

Launch sites

Canaveral	(S)LC-17 LC-18B SLC-37B
Johnston	LE-1 LE-2
Tanegashima	Osaki
Vandenberg	SLC-1 SLC-2 SLC-3 SLC-6 SLC-10
Bases	Bardney Breighton Caistor Carnaby Catfoss Coleby Grange Driffield Feltwell Folkingham Full Sutton Harrington Hemswell Ludford Magna Melton Mowbray Mepal North Luffenham North Pickenham Polebrook Shepherds Grove Tuddenham

Components

Boosters

First stages

Common Booster Core

Upper Stages

Delta	Delta-A Delta-D Delta-E Delta-F Delta-K Delta-P DCSS
Other	Able Ablestar Agena Altair Burner FW-4D IABS PAM-D Star UM-129

Engines

Manufacturers

Rocket	Douglas McDonnell Douglas Boeing United Launch Alliance
Engines	Aerojet Alliant Rocketdyne Thiokol TRW

Launches

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