Delta 5000

American orbital launch vehicle. The Delta 5000 series used the more powerful Castor 4A strap-ons but with the Extended Long Tank core with RS-27 engine. Only one was launched.

LEO Payload: 3,848 kg (8,483 lb) to a 185 km orbit. Payload: 1,405 kg (3,097 lb) to a GTO. Flyaway Unit Cost 1985$: 34.220 million.

Stage Data - Delta 5000

• Stage 0. 9 x Castor 4A. Gross Mass: 11,743 kg (25,888 lb). Empty Mass: 1,529 kg (3,370 lb). Thrust (vac): 478.309 kN (107,528 lbf). Isp: 266 sec. Burn time: 56 sec. Isp(sl): 237 sec. Diameter: 1.02 m (3.34 ft). Span: 1.02 m (3.34 ft). Length: 9.12 m (29.92 ft). Propellants: Solid. No Engines: 1. Engine: Castor 4A. Status: In Production.

• Stage 1. 1 x Delta Thor RS27. Gross Mass: 84,368 kg (185,999 lb). Empty Mass: 4,360 kg (9,610 lb). Thrust (vac): 1,030.218 kN (231,602 lbf). Isp: 296 sec. Burn time: 223 sec. Isp(sl): 262 sec. Diameter: 2.44 m (8.00 ft). Span: 2.44 m (8.00 ft). Length: 22.37 m (73.39 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: RS-27. Other designations: Extended Length Thor RS-27. Status: Out of Production.

• Stage 2. 1 x Delta K. Gross Mass: 6,954 kg (15,330 lb). Empty Mass: 950 kg (2,090 lb). Thrust (vac): 43.630 kN (9,808 lbf). Isp: 319 sec. Burn time: 431 sec. Diameter: 1.70 m (5.50 ft). Span: 2.40 m (7.80 ft). Length: 5.89 m (19.32 ft). Propellants: N2O4/Aerozine-50. No Engines: 1. Engine: AJ10-118K. Status: In Production.