1st stage ignition of Copanhagen Suborbital SMARAGD rocket. (Credits: Copenhagen Suborbitals).
On November 26, Copenhagen Suborbitals conducted a test of their two-stage rocket SMARAGD. The test was a success, with a 3 second burn on the first stage and 20 second burn on the second stage engine.
The engines are designed to ignite simultaneously with allowance for a 3 second delay. During the test, the engines ignited within 0.11 seconds of each other.
Copenhagen Suborbitals is a two person enterprise aimed at launching themselves to space on a home made rocket. In June 2011 Copenhagen Suborbitals successfully launched a 9 meter unmanned rocket over the Baltic Sea.
Below is a video of the test.
![A trajectory analysis that used a computational fluid dynamics approach to determine the likely position and velocity histories of the foam (Credits: NASA Ref [1] p61).](http://www.spacesafetymagazine.com/wp-content/uploads/2014/05/fluid-dynamics-trajectory-analysis-50x50.jpg)
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