After all that blather about the HTP rocket, no mention of the required thrust. I might just have one in my garage.
Wikipedia says they need 40kN of thrust from the rocket to reach 800mph. Whereas the BBC article mentions 75% of the jet, which would anything up to about 65kN
I am always amazed that, after the Blue Flame showed how it should be done 50 years ago, no one has since built a serious rocket-powered LSR contender. After all, it?s not rocket science ...