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Wind-Tunnel Tests of the 1/9-Scale Model of the Curtiss XP-62 Airplane with Various Vertical Tail Arrangements

Description: The effect of various vertical tail arrangements upon the stability and control characteristics of an XP-62 fighter model was investigated. Rudder-free yaw characteristics with take-off power and flaps deflected were satisfactory after dorsal fin modifications. Directional stability was obtained with all modified vertical tails. Satisfactory rudder effectiveness resulted partly because the dual-rotation propellers produced no asymmetric yawing moments. Pedal forces in sideslips were undesirably large but may be easily reduced.
Date: July 1, 1943
Creator: Wallace, Arthur R. & Recant, I.G.

Wood at war.

Description: Black and white poster with five photos showing the use of wood in military defense. Each photo has a caption underneath describing how the wood is being used.
Date: 1943
Creator: United States. War Department. Bureau of Public Relations.

Wood follows the flag.

Description: A series of red-tinted photographs depict the use of wood for war purposes. Each photo has a caption describing how the wood is being used.
Date: 1943
Creator: United States. War Department. Bureau of Public Relations.

Work of the Safety Division, Fiscal Year 1942

Description: Report issued by the U.S. Bureau of Mines on the investigative and educational work done by the Safety Division during 1942. Accident prevention methods and safety incentives are presented. These include first-aid and mine rescue training programs. This report includes tables, and photographs.
Date: April 1943
Creator: United States. Bureau of Mines. Safety Division.