“The Stratos rocket was succesfully launched today at 11:28 CET from Esrange Space Center reaching an altitude of 12.55 kilometers, thereby breaking the European altitude record for amateur experimental rockets! Esrange Space Center has confirmed the altitude.”
The Delft Aerospace Rocket Engineering Team launched the Stratos rocket to an altitude of 12.55 kilometers or 7.79 miles. This is a two stage rocket with a 4 engine cluster in the first stage.
“The first stage uses four clustered solid propellant motors of about one meter height. These motors burn for just 4 seconds. In total these motors provide 640 kg of thrust, enough to lift a small car! After a short coasting phase the main engine will be ignited. The main engine is about 2.20 m long and provides a thrust of 300 kg for 6 seconds.”