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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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Published by Rasmus Agdestein on

1 Comment

Richard von Brecht · 6th January 2021 at 4:12 pm

If you intend to reuse your boosters after recovering them from the ocean you need to be careful. Austenitic stainless steels such as 304SS are prone to chloride stress cracking at temperatures as low as 60 deg C. When we shipped stainless steel pressure vessels by ship we provided additional protection to prevent that. Given that you are work hardening your fuel tanks you most likely are even more prone to that problem. An alternative is low copper aluminum that is commonly used in offshore platforms.

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