Charles Lee with 60-Inch Telephoto Lens
Charles Lee, engineer at Eastman Kodak Company's Hawk-Eye Works, stands beside the giant 60-inch, F/6.0 telephoto lens, built for the U.S. Air Force. It will be used in aerial reconnaissance photography. The lens, shown here without its cover, consists of five class elements, of which two are visible. The circular tubing surrounding it is an electronic heating device to keep the lens in proper focus at high altitudes up to ten miles. 1948. The camera uses 9 inch wide rolls of film 500 feet long.
German ground crew checking the tires on the Heinkel He 177 Greif. Although externally it looked relatively conventional, almost every aspect of the He 177 introduced technical innovation and complexity. This was true even for the landing gear, the complex design meant that changing a wheel on the He 177 could take up to two hours.
These weren't just "oaks" - they were planted between larch and spruce so that they would grow tall and straight, which means the navy oak forests are rather unusual.