Unha
The Unha or Eunha (Korean: 은하, 銀河, "Galaxy") is a North Korean expendable carrier rocket, which partially utilizes the same delivery system as the Taepodong-2 orbital launch system.
Unha-3 at launch pad in April 2012 | |
| Function | Expendable carrier rocket |
|---|---|
| Manufacturer | National Aerospace Development Administration |
| Country of origin | North Korea |
| Size | |
| Height | 28–30 metres (92–98 ft) |
| Diameter | 2.4 metres (7 ft 10 in) |
| Mass | 86,750–91,000 kilograms (191,250–200,620 lb) |
| Stages | 3 |
| Capacity | |
| Payload to LEO | |
| Mass | 200 kg (440 lb) (465 x 502 km) |
| Launch history | |
| Status | Active |
| Launch sites | Sohae, Tonghae |
| Total launches | 4 |
| Success(es) | 2 |
| Failure(s) | 2 |
| First flight | 5 April 2009 |
| First stage | |
| Height | 15 m (49 ft) |
| Diameter | 2.4 m (7 ft 10 in) |
| Powered by | 4 Nodong 2-1 |
| Maximum thrust | 1192.8 kN |
| Specific impulse | 252 sec |
| Burn time | 120 seconds |
| Propellant | N2O4/UDMH |
| Second stage | |
| Height | 8.8–9.3 m (29–31 ft) |
| Diameter | 1.5 m (4 ft 11 in) |
| Powered by | 4 verniers |
| Maximum thrust | 125 kN |
| Specific impulse | 255 s |
| Burn time | 220 seconds |
| Propellant | N2O4/UDMH |
| Third stage | |
| Height | 3.7–5.7 m (12–19 ft) |
| Diameter | 1.2–1.25 m (3 ft 11 in – 4 ft 1 in) |
| Powered by | 2 verniers |
| Maximum thrust | 35.4 kN |
| Specific impulse | 230 sec |
| Burn time | 245 seconds |
| Propellant | N2O4/UDMH |
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