Douglas Aircraft Company. Report #1063, Model 8A-3N (#540), Actual weight & balance, Nov. 10, 1939 Douglas Aircraft Company. Report #1049, Actual weight and balance, Model 8A-3N (ship #531), Aug. 21, 1939 Hughes. The full spectrum of tactical electro-optics Douglas Aircraft Company. Type C-4, Fixed gun sights Douglas Aircraft Company. Model 8A3N, Fuselage, Appedix - report no. 532, December 29 1939 Douglas Aircraft Company. Report #1060, Model 8A-3N (#535), Actual weight & balance, October 17, 1939 Handbook of instructions for the 8A-3N airplane / Douglas Aircraft Co., Inc. Actual weight and balance / Douglas Aircraft Co., Inc.
