Yes it's an interesting book and even if (like me) you're not interested in endless "what if" scenarios and speculative paint schemes, the exploration of the many weapons fit proposals are certainly interesting. The afore-mentioned book also seems to follow the same path as I've outlined above, as regards confirmed units and bases and it doesn't look as if there was ever any documentation to suggest that anything beyond this was ever established before the project was cancelled. Having said that, if anybody spots anything, do let us know as it would be nice to get as much factual information clarified as possible. There's a huge amount of material out there on the TSR2 but when you start wading through it all, the facts are heavily outweighed by the fiction so it's pretty difficult to weed-out the emotion from the reality!