I look forward to reading you book too Peter. I'm sure your book will be a "laster" and through the years will sell consistently as it is the type of book most aviators and some other curious folk will be very interested in. After all, you will forever be etched in Aviation History and held in such high regard.
Also, it is the kind of book that all aspiring/new pilots coming into the aviation world wil want to read.
I'm sure most Libraries around the country would also want to stock it.
Sales may take time to gather pace, but I'd be surprised if it didn't sell well into the thousands. Aviation disaters are a global subject/interest and all English speaking countries for starters are potential markets.
Further out, next christmas should be a great time for ramping up Sales. There are alot of retired pilots, ex Military guys, aviation enthusiasts that would love getting your book as a gift.
In the world of the internet and very quick word of mouth and easy global courrier services, good things can surely happen for your book.
I take note though, that you have written this book for your Children first and foremost.
Best of luck with everything,
JJ