Delta 5920
Delta 59208 no. 189  COSPAR 1989089
American orbital launch vehicle. The Delta 5000 series used the more powerful Castor 4A strapons but with the Extended Long Tank core with RS27 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 in 1985 dollars. Flyaway Unit Cost $: 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: RS27. Other designations: Extended Length Thor RS27. 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/Aerozine50. No Engines: 1. Engine: AJ10118K. Status: In Production.
Status: Out of production.
Gross mass: 201,580 kg (444,400 lb).
Payload: 3,848 kg (8,483 lb).
Height: 34.00 m (111.00 ft).
Diameter: 2.44 m (8.00 ft).
Thrust: 3,468.90 kN (779,840 lbf).
Apogee: 185 km (114 mi).
More...  Chronology...
Associated Countries
Associated Spacecraft

COBE American infrared astronomy satellite. One launch, 1989.11.18. More...
Associated Engines

AJ10118K Aerojet N2O4/Aerozine50 rocket engine. 43.4 kN. Isp=321s. Pressurefed engine, optimized for altitude operation, used in Delta K stage from 1989. Not regeneratively cooled; used a rubber modified silica phenolic ablative at the combustion flame front. More...

RS27 Rocketdyne Lox/Kerosene rocket engine. 1023 kN. Out of production. Isp=295s. Consisted of RS2701A/B main engine, and twin LR101NA11 verniers. Introduced in 1974 on the McDonnell Douglas' Delta 2000 series launcher; replaced the MB3. First flight 1972. More...
See also

Delta The Delta launch vehicle was America's longestlived, most reliable, and lowestcost space launch vehicle. Development began in 1955 and it continued in service in the 21st Century despite numerous candidate replacements. More...
Associated Manufacturers and Agencies

Douglas American manufacturer of rockets, spacecraft, and rocket engines. Boeing Huntington Beach, Huntington Beach, CA, USA. More...
Associated Stages

Castor 4A Solid propellant rocket stage. Loaded/empty mass 11,743/1,529 kg. Thrust 478.31 kN. Vacuum specific impulse 266 seconds. More...

Delta K N2O4/Aerozine50 propellant rocket stage. Loaded/empty mass 6,954/950 kg. Thrust 43.63 kN. Vacuum specific impulse 319 seconds. More...

Delta Thor RS27 Lox/Kerosene propellant rocket stage. Loaded/empty mass 84,368/4,360 kg. Thrust 1,030.22 kN. Vacuum specific impulse 296 seconds. More...
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