Boosted oxygen consumption, 32 per cent oxygen 289 lb per min concentration Oxygen to be supplied 100 lb per min Weight of 8000-hp engine 16,000 lb Weight of boosted 6000-hp engine 12,000 lb Weight of oxygen for 2-min boost 200 lb Weight of container for 29 lb of liquid oxygen 150 lb Net weight saving by oxygen boost 3650 lb Weight per horsepower, nonboosted engine 2 lb Weight per horsepower, boosted engine 1.54 lb Footnotes: [1] Appendix, p. 43. [2] Letter, Hermann I. A. Dorner to National Air Museum, March 3, 1962. [3] See p. 20 ff. [4] Appendix, p. 46. [5] _Aeronautics_ (October 1929), vol. 5, no. 4, p. 32. [6] _The Packard Diesel Aircraft Engine--A New Chapter in Transportation Progress_ (Detroit: Packard Motor Car Co., 1930), p. 5. [7] A memorial to Woolson who was killed in the crash of a Packard diesel-powered Verville "Air Sedan" on April 23, 1930. [8] _Packard Inner Circle_ (April 18, 1932), vol. 17, no. 6, p. 1. [9] _Aero Digest_ (February 1932), vol. 20, no. 2, p. 54. [10] Letter, Richard Totten to National Air Museum, January 28, 1964. [11] _Instruction Book for the Packard-Diesel Aircraft Engine_ (Detroit: Packard Motor Car Company, 1931), p. 3. [12] _S.A.E. Journal_ (April 1930), vol. 24, no. 4, pp. 431 and 432. [13] Letter, Richard Totten to National Air Museum, January 28, 1964. [14] Letter, Hermann I. A. Dorner to National Air Museum, December 16, 1961. [15] _The National Aeronautic Magazine_ (April 1932), vol. 10, no. 4. p. 18. [16] _Aviation_ (May 1931), vol. 30, no. 5, p. 281. [17] _The Packard Diesel Aircraft Engine_, p. 5. [18] _Instruction Book for the Packard-Diesel Aircraft Engine_, p. 3. [19] "Test of Packard-Diesel radial air-cooled engine," Navy Department, Bureau of Aeronautics, Report AEL-335, July 13, 1931, Bu. Aer. Proj. 2265. [20] _Aviation_ (May 1931), vol. 30, no. 5, p. 281. [21] Letter, Clarence H. Wiegman to National Air Museum, November 1, 1961. [22] Letter, Dorner to National Air Museum, January 15, 1962. [23] Letter, Hugo T. Byttebier to National Air Museum, October 20, 1961. [24] Letter, Clarence D. Chamberlin to National Air Museum, February 8, 1964. [25] RUTH NICHOLS, _Wings For Life_ (Philadelphia and New York: J. B. Lippincott Co., 1957), p. 205. [26] Letter, Richard Totten to National Air Museum, January 28, 1964. [27] Letter, Richard Totten to National Air Museum, January 28, 1961. [28] _Aero Digest_ (February 1931), vol. 18, no. 2, p. 58. [29] "50-Hour Test of Packard Diesel Aircraft Engine," Packard Motor Car Company, Detroit, Michigan, serial no. 426, test no. 234-73, February 19, 1930.