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Thor Delta D
Part of Thor Family
Delta D no. 30
Delta D no. 30
Delta D no. 30 - COSPAR 1965-028
American orbital launch vehicle. Four stage vehicle consisting of 3 x Castor + 1 x Thor DSV-2C + 1 x Delta D + 1 x Altair 2

AKA: Delta D;Thrust Augmented Thor. Status: Retired 1965. First Launch: 1964-08-19. Last Launch: 1965-04-06. Number: 2 . Payload: 450 kg (990 lb). Thrust: 1,571.00 kN (353,174 lbf). Gross mass: 63,966 kg (141,020 lb). Height: 32.00 m (104.00 ft). Diameter: 2.44 m (8.00 ft). Apogee: 40,000 km (24,000 mi).

LEO Payload: 450 kg (990 lb). Payload: 104 kg (229 lb) to a GTO. Flyaway Unit Cost 1985$: 12.720 million.

Stage Data - Delta D

  • Stage 0. 3 x Castor 1. Gross Mass: 3,852 kg (8,492 lb). Empty Mass: 535 kg (1,179 lb). Thrust (vac): 286.001 kN (64,296 lbf). Isp: 247 sec. Burn time: 27 sec. Isp(sl): 232 sec. Diameter: 0.79 m (2.59 ft). Span: 0.79 m (2.59 ft). Length: 5.92 m (19.42 ft). Propellants: Solid. No Engines: 1. Engine: M33-20-4. Status: Out of Production.
  • Stage 1. 1 x Delta Thor TA. Gross Mass: 49,442 kg (109,000 lb). Empty Mass: 3,175 kg (6,999 lb). Thrust (vac): 866.710 kN (194,844 lbf). Isp: 290 sec. Burn time: 150 sec. Isp(sl): 256 sec. Diameter: 2.44 m (8.00 ft). Span: 2.44 m (8.00 ft). Length: 18.41 m (60.40 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: MB-3-3. Other designations: Thrust Augmented Thor. Status: Out of Production.
  • Stage 2. 1 x Delta D. Gross Mass: 2,693 kg (5,937 lb). Empty Mass: 545 kg (1,201 lb). Thrust (vac): 33.695 kN (7,575 lbf). Isp: 278 sec. Burn time: 170 sec. Isp(sl): 0.0000 sec. Diameter: 0.84 m (2.75 ft). Span: 0.84 m (2.75 ft). Length: 5.58 m (18.30 ft). Propellants: Nitric acid/UDMH. No Engines: 1. Engine: AJ10-118D. Status: Out of Production.
  • Stage 3. 1 x Altair 2. Gross Mass: 275 kg (606 lb). Empty Mass: 37 kg (81 lb). Thrust (vac): 22.241 kN (5,000 lbf). Isp: 266 sec. Burn time: 28 sec. Isp(sl): 242 sec. Diameter: 0.64 m (2.09 ft). Span: 0.64 m (2.09 ft). Length: 2.53 m (8.30 ft). Propellants: Solid. No Engines: 1. Engine: X-258. Status: Out of Production.



Family: orbital launch vehicle. Country: USA. Engines: AJ10-118D, MB-3-3. Spacecraft: Syncom, Intelsat 1. Projects: Intelsat. Launch Sites: Cape Canaveral, Cape Canaveral LC17A. Stages: Delta Thor TA, Delta D, Altair 2, Castor 1. Agency: Douglas.
Photo Gallery

Delta DDelta D
Credit: © Mark Wade



1964 August 19 - . 12:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Thor Delta D.
  • Syncom 3 - . Payload: Syncom C. Mass: 39 kg (85 lb). Nation: USA. Agency: NASA Greenbelt. Class: Technology. Type: Communications technology satellite. Spacecraft Bus: HS 301. Spacecraft: Syncom. Completed Operations Date: 1974-12-29 . USAF Sat Cat: 858 . COSPAR: 1964-047A. Apogee: 35,792 km (22,240 mi). Perigee: 35,784 km (22,235 mi). Inclination: 0.1000 deg. Period: 1,436.20 min.

    NASA's Syncom III synchronous communi- cations satellite was launched into orbit by a Thrust Augmented Thor/Delta (TAD) launch vehicle in its first use as a space booster. By the end of August, Experimental commsat; carried Star Flash experiment. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 64 deg W in 1964; 180 deg E in 1964; 25 deg W in 1965; 165 deg E in 1966-1969. Last known longitude (6 December 1974) 6.08 deg W drifting at 0.188 deg W per day.


1965 April 6 - . 23:47 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Thor Delta D.
  • Intelsat 1 F-1 - . Payload: Early Bird. Mass: 39 kg (85 lb). Nation: International. Agency: INTELSAT. Program: Intelsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: HS 303. Spacecraft: Intelsat 1. Completed Operations Date: 1971-01-01 . USAF Sat Cat: 1317 . COSPAR: 1965-028A. Apogee: 35,819 km (22,256 mi). Perigee: 35,746 km (22,211 mi). Inclination: 11.7000 deg. Period: 1,435.90 min.

    Over Atlantic. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 28 deg W in 1965; 38 deg W in 1965-1966. As of 27 July 2001 located at 92.54 deg W drifting at 0.324 deg W per day. As of 2007 Jan 13 located at 47.74W drifting at 0.017E degrees per day.



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