Amazon.com description: Product Description: U.S. AIR FORCES STATISTICAL DIGEST SUMMARIZES THE GREAT VOLUME OR STATISTICAL INFORMATION COLLECTED AND PUBLISHED BY THE VARIOUS OFFICES IN HEADQUARTERS USAF, THE AIR FORCES AND CERTAIN AIR FORCE COMMANDS. THE MORE IMPORTANT DATA ON THE MANY ACTIVITIES AND OPERATIONS OF THE USAF ARE BROUGHT TOGETHER ON A UNIFORM BASIS TO SERVE AS AN OFFICIAL AND BASIC REFERENCE MANUAL. THC 1947 STATISTICAL DIGEST IS THE SECOND EDITION IN AN ANNUAL SERIES. PREVIOUS EDITIONS - ARMY AIR FORCES STATISTICAL DIGEST (WORLD WAR II) AND SUPPLEMENT NUMBER 1 THERE TO AND AAF STATISTICAL DIGEST, 1946 - MADE AVAILABLE SUMMARY STATISTICS ON WORLD WAR II AND ON SELECTED SUBJECTS THROUGH THE YEAR 1946. THE PRESENT ISSUE INCLUDES THE MAJORITY OF THE TABLES CARRIED IN THE 1946 EDITION. HISTORICAL CONTINUITY HAS BEEN PRESERVED AND EACH SERIES HAS BEEN BROUGHT FORWARD THROUGH 1947. IN ADDITION, SEVERAL NEW TABLES HAVE BEEN ADDED ON DATA WHICH HAS BECOME AVAILABLE DURING THE PREPARATION OF THIS ISSUE.