Copenhagen Suborbitals
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Latest posts
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We measure everything. Except you
We log pressure, temperature and acceleration on almost everything we build, but we know very little about the people who follow us and fund the hardware. Whether you’re Mission Crew supporting us monthly or just Read more…
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Testing the Test Stand: Why BPM-17 Matters
Video further down In a few months, we’re going to light BPM-17—a 1.7-tonne test engine deliberately designed to be as simple as possible. No complex cooling systems. No throat. No soul-crushing engineering. Just a pipe, Read more…
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We built the flight. Here it is
Fifteen minutes from ignition to splashdown — built on our simulation data There is a moment, about two minutes into the simulation below, where the rocket has shut down its engine and the capsule continues Read more…
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Why Our Space Capsule Is So Shockingly Small — And Why We Can’t Make It Bigger?!
Every time we publish a drawing or picture of the Copenhagen Suborbitals capsule, someone inevitably asks — sometimes kindly, sometimes anxiously, and sometimes with the same wary tone used by people recalling a long‑haul Ryanair Read more…
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BPM-17 Injector is complete!
The injector for BPM-17 is now complete. BPM-17 is a test engine built to prepare our test stand for the next generation of Spica’s large rocket engines. While the injector itself is a highly technical Read more…
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The Capsule Comes Alive Again
For several years, our focus at Copenhagen Suborbitals has been on building Spica’s powerful engines — the force that will one day lift a human beyond Earth’s atmosphere. While the engines took shape, the space Read more…
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Rocket science returns to Refshaleøen – Copenhagen Suborbitals to test new nitrogen heater
On Saturday, July 26th, Copenhagen Suborbitals will conduct the first test of a brand-new rocket burner – a key step in developing the pressurization system for our next-generation rocket, Spica. The test will take place Read more…
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Nitrogen heater picture gallery
The nitrogen burner being tested The heat exchanger for the nitrogen gas generator the test stand where the heater is being tested. This was previously used for the Nexø rocket engines Bo and Jacob sits with the liquid oxygen tank part of the team is getting ready to work on the…
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Update — April 2025
In vacuum, no one can hear you cheer. But down here, we still have big news to share. Tested. Trusted. To be Fired up soon. To all our dedicated followers, donors, and spaceflight romantics… We Read more…
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Win a skydive by helping us realize our next parachute test!
Dear rocket fans living in Denmark We are planning a test of our parachute system at Odense Parachute Center, and we need your help to finance this test, which unfortunately costs quite a bit in Read more…