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DEAR COPENHAGEN SUBORBITALS GUESTS, We'll get right to it: We need your help to run Copenhagen Suborbitals. This is a 100% non-profit project driven by sheer joy and hard work. We survive on donations averaging about $10, that we use to pay for raw materials, tools, our workshop, electricity and most importantly, rocket fuel. The entire CS team are unpaid volunteers, building rockets in our spare time. If this project brings you joy, please donate to keep it running. Thank you.
  
     
     
   

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Graphs describing tank pressure, engine pressure, thrust, duty cycle of the DPR valves and pressure in the high pressure system.

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Cooling mantle temperature graph. We have indeed reached thermal equilibrium.

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The new engine in the test stand, ready for its fiery baptism. Photo: Thomas Pedersen.

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Turned nozzle parts used for the new engine. As can be seen, the required tolerances are quite small, but a CNC lathe is able to deliver.

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