A thread for North Korea space activities not related with specific orbital launches.
The engine tested would give the country "sufficient carrier capability for launching various kinds of satellites, including Earth observation satellite at a world level", the report added.Mr Kim, KCNA said, called for more rocket launches to turn the country into a "possessor of geostationary satellites in a couple of years to come."
Pyongyang, September 20 (KCNA) -- Kim Jong Un, chairman of the Workers' Party of Korea, chairman of the State Affairs Commission of the DPRK and supreme commander of the Korean People's Army, visited the Sohae Space Center to guide the ground jet test of a new type high-power engine of a carrier rocket for the geo-stationary satellite. The newly developed high-power engine is a single engine whose thrust is 80 tf. The test was aimed to make a final confirmation of the feature of combustion chamber, operation accuracy of valves and control systems and structural reliability of the engine during 200 seconds-long working time. Kim Jong Un issued an order to conduct the test. The moment the engine spewed out huge flames with deafening sound. The test showed that thrust and other technological indexes of the engine accurately reached the estimated values and the feature values of all systems of the engine remained stable throughout the working time. The successful manufacture of the engine provided a firm scientific and technological guarantee for developing and completing the carrier rocket for geo-stationary satellite during the 5-year program for national aerospace development and made it possible to acquire sufficient carrier capability for launching various kinds of satellites including earth observation satellite at a world level.
North Korea Test Fires new high-thrust Rocket Engine with auxiliary Steering Motors - http://spaceflight101.com/north-korea-tests-new-rocket-engine-steering-motors/
This engine used four vernier thruster, Why ?
it's imply use in second stage,
But 80 tons trust ? i have not found any information on thrust value of this engine.If it's really 80 metric tons then North Korea got chance to build rocket that bring 120 Kg in low orbit Or SLBM in size of R-29 SLBM...
Quote from: Michel Van on 03/20/2017 07:25 amThis engine used four vernier thruster, Why ?The verniers are for thrust vector control. The main nozzle is fixed in place. Thor used a similar system, but with only two verniers.
Quote from: Michel Van on 03/20/2017 07:25 amThis engine used four vernier thruster, Why ?The verniers are for thrust vector control. The main nozzle is fixed in place. Thor used a similar system, but with only two verniers.Quoteit's imply use in second stage, Then what is the first stage? I think this will be used on a first stage initially.QuoteBut 80 tons trust ? i have not found any information on thrust value of this engine.If it's really 80 metric tons then North Korea got chance to build rocket that bring 120 Kg in low orbit Or SLBM in size of R-29 SLBM... That could be the plan. The next step might be to cluster the engines Space-X style and then use this engine on an upper stage. Another possibility is to cluster several cores.
Quote from: Michel Van on 03/20/2017 07:25 amBut 80 tons trust ? i have not found any information on thrust value of this engine.If it's really 80 metric tons then North Korea got chance to build rocket that bring 120 Kg in low orbit Or SLBM in size of R-29 SLBM... Falcon1 46 t -----> 180-670 kg to LEO (https://en.wikipedia.org/wiki/Falcon_1)NorthKorea New Engine 80 t ----> 120 kg to LEO ?
Perhaps the thread title needs to be changed to "North Korean Unspace Program".
Apparently they are "re-spacing" again...
Quote from: Steven Pietrobon on 07/26/2018 04:52 amPerhaps the thread title needs to be changed to "North Korean Unspace Program".Apparently they are "re-spacing" again...
North Korea Begins Dismantling Key Facilities at the Sohae Satellite Launching Stationhttps://www.38north.org/2018/07/sohae072318/
Quote from: Websorber on 07/23/2018 09:32 pmNorth Korea Begins Dismantling Key Facilities at the Sohae Satellite Launching Stationhttps://www.38north.org/2018/07/sohae072318/Given the specifics of what they are dismantling i would not be surprised if they are upgrading the sohae launch center not taking it apart. If we are to assume the september/october 2018 maiden launch date of next gen unha stands (as issued in kim jong uns directive last december) then all of a sudden all of this activity at sohae begins to make more sense. It simply does not make sense to invest billions over the cause of many years in a launch capability then take the entire thing apart.