A good few years ago I was in the Concorde archive legitimately looking for something but couldn’t resist from typing ‘Military Concorde’ into the search. Only two documents came up;- the first dated 1970, was a study on how much of military value could be learnt by the Chinese if they bought a few, but the second dated 1974, was a proposal to the RAF for military versions. This report was about 40 pages and detailed 3 potential versions;- The first was a transport version , a drawing shows a swing nose and landrovers driving down a long ramp. This proposal was covered by just 2 of the 40 pages and really had very little detail. The next is a supersonic strike aircraft. A drawing shows 3 nuclear strike missiles (looking a bit like AGM-69 SRAM’s) within the fuselage launched on angled tubes exiting the fuselage underside. This proposal runs to about 10 pages. There’s quite a bit of info on mission profile, tactical equipment fit etc. The third proposal is for a tactical recon version. This occupies the majority of the report. Lots of info on camera / radar / eves dropping kit / decoys / ECM mission profiles etc. I would suggest the number of pages in the report probably represents the relative interest from the customer.

Good stuff, all history now.