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KSR-III

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KSR-III Credit: © Mark Wade

AKA: Korea Sounding Rocket-III. Status: Active. First Launch: 2002-11-28. Last Launch: 2002-11-28. Number: 1 . Payload: 150 kg (330 lb). Thrust: 122.00 kN (27,426 lbf). Gross mass: 6,000 kg (13,200 lb). Height: 14.00 m (45.00 ft). Diameter: 1.00 m (3.20 ft). Apogee: 80 km (49 mi).

The go-ahead for KARI to proceed with development of a liquid propellant launch vehicle came in December 1997. The KSR-III demonstrated key technologies for the KSLV-I satellite launch vehicle in the propulsion, guidance, control, and mission design areas.

The Korea-developed pressure-fed liquid oxygen/kerosene motor provided a thrust of 12,500 kgf at sea level. This would be equivalent to the X-405 motor developed in the United States for the Vanguard space launcher in the 1950's. For the test launch, available pressurant only allowed a burn time of 53 seconds, with about 2500 kg of propellant consumed. Available tank volume indicated the stage was designed to be loaded with over 4000 kg of propellant.

Payload: 150 kg (330 lb) to a 80 km altitude.

Stage Data - KSR-III

• Stage 1. 1 x KSR-3. Gross Mass: 5,000 kg (11,000 lb). Empty Mass: 700 kg (1,540 lb). Thrust (vac): 122.500 kN (27,539 lbf). Isp: 280 sec. Burn time: 95 sec. Isp(sl): 240 sec. Diameter: 1.00 m (3.20 ft). Span: 1.00 m (3.20 ft). Length: 9.60 m (31.40 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: KSR-3. Status: Hardware 2002. Comments: All values except thrust estimated.

Photo Gallery

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S Korean LVs South Korean indigneous rockets. Credit: © Mark Wade

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• KSR-III Launch Vehicle Technology Test / Aeronomy mission - . Nation: Korea South. Agency: KARI. Apogee: 43 km (26 mi).

  The rocket reached 42 km altitude and a speed of 902 meters per second. It impacted in the West Sea 85 km from the coastal launch site, 231 seconds after launch. In preparation for the launch, KARI and related agencies successfully carried out ignition tests in May and August.