This book is a big disappointment compared to the earlier edition. The omissions of most of the WW II data in the appendixes is glaring. Without this information, most of the history of Naval Aviation disappears. The first edition at $21.00 versus $73.00 for the later one makes it a much better buy. Without the first one you don't have much of the history. Of course, if money is not a problem, get both of them. The second will collect lots more dust.