Heavy-lift orbital launch vehicle. Country: USA. Status: Study 1987. 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.
Manufacturer: Douglas. LEO Payload: 45,400 kg (100,000 lb). to: 300 km Orbit. at: 28.00 degrees. Liftoff Thrust: 35,789.560 kN (8,045,813 lbf). Total Mass: 2,500,000 kg (5,500,000 lb). Core Diameter: 2.44 m (8.00 ft). Total Length: 31.00 m (101.00 ft). Launch Price $: 500.000 million. in: 1987 price dollars.
- Stage0: 3 x Shuttle SRB. Gross Mass: 589,670 kg (1,299,990 lb). Empty Mass: 86,183 kg (190,000 lb). Motor: 1 x SRB. Thrust (vac): 11,519.999 kN (2,589,799 lbf). Isp: 269 sec. Burn time: 124 sec. Length: 38.47 m (126.21 ft). Diameter: 3.71 m (12.17 ft). Propellants: Solid.
- Stage1: 6 x Delta Thor XLT-C. Gross Mass: 101,900 kg (224,600 lb). Empty Mass: 5,900 kg (13,000 lb). Motor: 1 x RS-27C. Thrust (vac): 1,054.195 kN (236,992 lbf). Isp: 302 sec. Burn time: 265 sec. Length: 26.05 m (85.46 ft). Diameter: 2.44 m (8.00 ft). Propellants: Lox/Kerosene.
- Stage2: 1 x Delta Thor XLT-C. Gross Mass: 101,900 kg (224,600 lb). Empty Mass: 5,900 kg (13,000 lb). Motor: 1 x RS-27C. Thrust (vac): 1,054.195 kN (236,992 lbf). Isp: 302 sec. Burn time: 265 sec. Length: 26.05 m (85.46 ft). Diameter: 2.44 m (8.00 ft). Propellants: Lox/Kerosene.
Bibliography:- Aviation Week and Space Technology, "SDI Considers Cluster Booster to Launch Zenith Star Spacecraft", 1987-11-30, page 20.