Saw this a earlier this morning on the Beeb site
...but then I made the mistake of reading through HYS. OMG there are some luddites out there!!!
El Reg comments, even Jake, Bob and AMFM1, are sane by comparison! :-)
Huge thumbs up for all at REL for this next stage. I hope I'm still around to see SABRE power the first Dan Dare style space plane.