Off Target: American Guided Bombs, Missiles and Drones:

Wolf. This book relates in detail the then "secret" research, development, and combat employment of these early guided bombs, missiles, and drones, from 1917 to 1948. Among the subjects discussed are Sperry's aerial torpedo and the Kettering "Bug" of WWI, WWII's early rudimentary GB Series Glide Bombs to the more sophisticated VB Series that evolved from radio, heat, light, or television guidance. The Aphrodite/Joseph Kennedy B-17, BQ, TDR, and target drones are discussed as are the SWOD, GLOMB, GORGON, and JB Jet bomb series. 544 pages, 344 B&W photos, 6¾"x 9¾", hardcover.