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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.
  
     
     
   

Swirlers

As you probably remember, our BPM5 engine uses a relatively simple injector technology. Simple in the way that it is a cylindrical disc with a whole lot of holes in which leads fuel and LOX Read more…

ago

BPM100 status

It is about time with an update on the BPM100 engine. Let’s start by looking at the dimensions and engine specifications. First, as the name indicates it will be a 100 kN engine. But 100 Read more…

ago

Rocket-Relay-Race

Dear readers, 1050 km, 72 kg, 4.02 meters and a cross section of 0.25 x 0.25 meters could unmistakably sound like one of the smaller rockets in CS history. However, it’s the basis for one Read more…

ago

BPM100 DPR?

Dear readers, Designing the world’s largest amateur rocket is not an easy task. It’s an iterative process with a lot of dependencies. One of the very important dependencies relates to the rocket’s “propellant delivery system”, Read more…

ago

BPM-100 Patch in 100 days

In Copenhagen Suborbitals something very, very big is brewing. Our Flight Director, Thomas Pedersen, has launched a very ambitious mission: To design and build the first BPM-100 rocket engine in 100 days! This engine class Read more…

ago

T minus 100

After having flown Nexø I & II it is now time to gear up to something bigger. Much bigger. It is time to go all in and attack the Spica rocket and all the sub-projects Read more…

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Ballute and parachute tests

On June 2nd we performed two tests: World’s first manned test of a ballute which is basically an inflatable parachute. This was to test the ballute before flying with the Nexø II rocket later this Read more…

ago