Preparation: The first three attempts to launch SL03 had to be abandoned because of technical problems. Tuesday 23rd July brought better luck, preparations were complete by 10 am, and it was fired at 12:32 local time.

Flight: Unfortunately SL03's run of back luck continued. Although aerodynamically it probably performed correctly in flight, a major mistake was made as it was fired, when an isolation switch was not operated, so the internal batteries were not connected, and the vehicle flew completely "dead".

Recovery: Ground based optical tracking was lost after 21 seconds when the rocket became hidden in the clouds. As a result SL03 was never found!