Encyclopedia Astronautica
Barbarian MDD


American heavy-lift orbital launch vehicle. Proposed launch vehicle for large SDI 'Star Wars' payloads. Expected to cost $ 400-500 million, the Barbarian could place the Zenith-Star chemical laser into low earth orbit. It would consist of 3 Shuttle SRM's, attached around a ring of six Delta RS-27 first stage boosters, which in turn clustered around a single Delta first stage booster that was the last stage of the launch vehicle.

LEO Payload: 45,400 kg (100,000 lb) to a 300 km orbit at 28.00 degrees. Launch Price $: 500.000 million in 1987 dollars.

Stage Data - Barbarian MDD

  • Stage 0. 3 x Shuttle SRB. Gross Mass: 589,670 kg (1,299,990 lb). Empty Mass: 86,183 kg (190,000 lb). Thrust (vac): 11,519.999 kN (2,589,799 lbf). Isp: 269 sec. Burn time: 124 sec. Isp(sl): 237 sec. Diameter: 3.71 m (12.17 ft). Span: 5.10 m (16.70 ft). Length: 38.47 m (126.21 ft). Propellants: Solid. No Engines: 1. Engine: SRB. Other designations: Solid Rocket Booster. Status: In Production.
  • Stage 1. 6 x Delta Thor XLT-C. Gross Mass: 101,900 kg (224,600 lb). Empty Mass: 5,900 kg (13,000 lb). Thrust (vac): 1,054.195 kN (236,992 lbf). Isp: 302 sec. Burn time: 265 sec. Isp(sl): 255 sec. Diameter: 2.44 m (8.00 ft). Span: 2.44 m (8.00 ft). Length: 26.05 m (85.46 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: RS-27C. Other designations: Extra ELT Thor+. Status: In Production.
  • Stage 2. 1 x Delta Thor XLT-C. Gross Mass: 101,900 kg (224,600 lb). Empty Mass: 5,900 kg (13,000 lb). Thrust (vac): 1,054.195 kN (236,992 lbf). Isp: 302 sec. Burn time: 265 sec. Isp(sl): 255 sec. Diameter: 2.44 m (8.00 ft). Span: 2.44 m (8.00 ft). Length: 26.05 m (85.46 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: RS-27C. Other designations: Extra ELT Thor+. Status: In Production.

Status: Study 1987.
Gross mass: 2,500,000 kg (5,500,000 lb).
Payload: 45,400 kg (100,000 lb).
Height: 31.00 m (101.00 ft).
Diameter: 2.44 m (8.00 ft).
Thrust: 35,789.56 kN (8,045,813 lbf).
Apogee: 300 km (180 mi).

More... - Chronology...


Associated Countries
Associated Engines
  • RS-27C Rocketdyne Lox/Kerosene rocket engine for Delta 7000. 1054.2 kN. Isp=302s. First flight 1990. More...
  • SRB Thiokol solid rocket engine. 11,520 kN. Isp=269s. Segmented solid rocket boosters for the compromised space shuttle design. Field joint design led to Challenger shuttle disaster. Production 1981-1985, after which superseded by RSRM's. More...

See also
Associated Manufacturers and Agencies
  • Douglas American manufacturer of rockets, spacecraft, and rocket engines. Boeing Huntington Beach, Huntington Beach, CA, USA. More...

Bibliography
  • "SDI Considers Cluster Booster to Launch Zenith Star Spacecraft", Aviation Week and Space Technology, 1987-11-30, page 20.

Associated Stages
  • Delta Thor XLT-C Lox/Kerosene propellant rocket stage. Loaded/empty mass 101,900/5,900 kg. Thrust 1,054.20 kN. Vacuum specific impulse 302 seconds. More...
  • Shuttle SRB Solid propellant rocket stage. Loaded/empty mass 589,670/86,183 kg. Thrust 11,520.00 kN. Vacuum specific impulse 269 seconds. Original configuration. More...

Home - Browse - Contact
© / Conditions for Use