British Space Programme

[rover2701]

It is in fact Black Arrow R4. R0 was the first test launch. This was destroyed just after lift off. The reason was an open circuit feed back loop in the attitude control system. This caused two of the engines to gimble fully both ways while trying to correct trajectory. Destroyed by the range safety oficer. R1 was a success,tested both first and second stages with dummy third stage. R2 was an orbital attempt with a satellite called ORBA. This failed due to the second stage shutting down 15 seconds early due to a leak in the HTP fuel tank. R3 was completely successful and orbited the Sattelite PROSPERO. Which is still up there. But as you state our wonderful backward thinking government had by then cancelled the project.