Buy this book, Dan follows the same research methodolgy I use and it is so simple it remains somehow bereft of prizes, 1) Read all the archive information 2) See what it says 3) Put it in the book This book will undoubtedly make many people who have ideas based on reading books written by people who have never bothered reading all the German Air Ministry stenographic records furious, as it may reveal all sorts of inconvenient facts. @TheRealDanSharp is a criminally under-rated historian and researcher, and the best his critics can come up with on forums is that he writes so much that it cant possibly be correct. Dan was my Editor for THE SECRET HORSEPOWER RACE, and I can tell you with total conviction that the reason he writes so much is that he`s just REALLY F***ing good and has inhuman concentration combined with hitman grade journalism skills. Buy ! Buy now !