USAAF bomb dropping angle scales. Dated 1943
Used by USAAF Bombardiers throughout WWII. This is a set of 'Preset Dropping Angle Scales, Combat Bombs For ; Dead Reckoning Computers'. By G Felsenthal & Sons, Chicago. Set of three plastic sheets, each approximately 27.5cm x 10cm and marked with information relating to the release of bombs from different altitudes. Covers 100lb to 300lb bombs at heights from 900 to 1300 and 1000 to 3000 ft. 100lb to 2000lb bombs from 500' to 900 and 100 to 500 ft. 500lb to 2000lb bombs at heights from 900 to 1300 and 1000 to 3000 ft. These charts come in their original canvass pouch which clearly shows the contract and parts number along with the makers details The scales are in excellent. The contract number shown indicates a production date of 1943.