Thanks for the support but I won't be getting any richer, no matter how many people buy it. I settled for a one-off fee to produce it (and you'd be horrified to know how much- or how little it was!) but I thought it would be an interesting project, so what the hell!
Ultimately, I'd be happy if the end result is something that is at least close to a "definitive" book on our beloved Vulcan, chiefly because I seriously doubt if any other publisher will ever produce something so substantial on the Vulcan. These days, plane books just don't interest publishers, so it's hard work to get anything worthwhile commissioned, sadly.