REPORT OF THE SECRETARY: NATIONAL MUSEUM 119 



in 1830. Two structural sections from tlio airships Shenandoah and 

 Akron, showing two forms of trusses, came from Howard Minker, 

 Washington, D.C., and the Goodyear Tire & Rubber Co., respectively. 



To the collection of aircraft engines the Pratt & Whitney Co., 

 Hartford, Conn., added a sectioned operating example of their 

 "Wasp" engine. Seven airship propellers were transferred from the 

 War Department; an adjustable metal airplane propeller of 1914 was 

 presented by Inglis M. Uppercu, Keyport, N.J.; and a modern hollow 

 steel blade from a Dicks propeller was given by the Pittsburgh Screw 

 & Bolt Corporation. A departure from the usual form of lift and 

 propulsion is illustrated by a wind-tunnel model of a rotary airfoil, 

 presented by its inventor, LB. Laskowitz, Brooldyn, N.Y. 



Although several full-size airplanes were offered to the Museum 

 during the year, none could be accepted because of limited space. 

 To the collection of airplane models, however, man}?" new types were 

 added, including a beau.tifulh^ constructed miniature of a "Travelair" 

 biplane of 1930, one eighth size and half skeletonized to show the 

 construction. It is one of the finest models in the collection and was 

 loaned by its maker, Herbert Atkinson, of New Bedford, Mass. The 

 acquisition of a Curtiss pusher model of the 1908 type and a Curtiss 

 "Hawk" model of 1928, both made to the same scale, permits an 

 interesting contrast of airplane design over a 20-year period. These 

 models were received from Edward Reeves and Richard Hooper, 

 respectively, of Washington, D.C. Another model received from 

 Mr. Reeves illustrates the old "Antoinette" type, a French mono- 

 plane of 1909, which made remarkable flights in the early days of 

 aviation. A German World War bombing airplane is represented 

 by a model of a "Gotha", made and presented by Isaac H. Henry, 

 of Easton, Md. Modern military t^^pes are shown by a "Condor" 

 bomber model from Harris Taylor, Clarendon, Va. ; a Boeing low-\ving 

 monoplane model from Robert McGregor, Clarksburg, W.Va.; and 

 a Navy Vouglit "Corsair" model made by Edwin Geigan, W^ashing- 

 ton, D.C, and received from Miss E. M. Luers, Bowie, Md. The 

 series of models illustrating the winners of the famed Sclmeider 

 trophy for seaplanes was increased by a miniature of the Supermarine 

 S-6-B, which won the trophy in 1931 at a speed of 340 miles an hour. 

 The model was made and ])rescnted by Ivan Lettner, Anacostia, D.C. 



With the assistance of the War Department, A. G. Spalding Co., 

 New York, Sternheimer Bros., Richmond, Va., and the Transcon- 

 tinental and Western Air, Inc., Kansas City, Mo., a display of fliers' 

 helmets was prepared showing the evolution of pilots' headgear from 

 the old crash helmets of the early days to the uniform cap of the 

 modern transport pilot. 



The Beverly Hills (Calif.) Chamber of Commerce presented the 

 parachute with which the flier Rodman Law made a demonstration 



