One for the aero-geeks

While attempting to update my con guide, I'm searching the web trying to find decent pages about guests at past and forthcoming UK cons. I'm having difficulty finding anything for Mitchell Burnside Clapp (GOH at Concourse), but I did find an article he wrote about the Black Horse one-stop-to-orbit spaceplane concept. Very interesting reading, if you can cope with the (fairly high) level of technical detail.