Author: U. S. DEPARTMENT OF COMMERCEW
Title: Parachute Supplement of Air Commerce Regulations (January 1, 1931) (Aeronautics Bulletin No. 7-D)
Description: Washington D. C.: Government Printing Office, 1931. Stapled wraps. This is a thin, trade sized booklet with self covers and a stapled spine. The covers have noticeable toning, and several creases. The The cover corners have creases as well. The text pages are clean, but also toned. "The experience with parachutes during the war highlighted the need to develop a design that could be reliably used to exit a disabled airplane. For instance, tethered parachutes did not work well when the aircraft was spinning. After the war, Major Edward L. Hoffman of the United States Army led an effort to develop an improved parachute by bringing together the best elements of multiple parachute designs. Participants in the effort included Leslie Irvin and James Floyd Smith. The team eventually created the Airplane Parachute Type-A. This incorporated three key elements: Storing the parachute in a soft pack worn on the back, as demonstrated by Charles Broadwick in 1906; A ripcord for manually deploying the parachute at a safe distance from the airplane, from a design by Albert Leo Stevens; and A pilot chute that draws the main canopy from the pack." (from Wikipedia). Good .

Keywords: Aeronautics / Astronautics U. S. Department Of Commerce Aeronautics Bulletins Parachutes Air Commerce Regulations Aeronautics / Astronautics


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