This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Collection Item Summary:
This collection consists of .26 cubic feet of articles, drawings, and images chronicling Fred A. Thaheld's aeronautical engineering career, including his work with the following aircraft diesel engines: Guiberson Diesel A-918, Guiberson Diesel A-980 and Guiberson Diesel T-1020. There is also information regarding the aircraft designed by Thaheld, including the Tremaine Humming Bird "The Spirit of John Rodgers," and images of Fred Thaheld, Allen Guiberson, W.D. Shaffer, Sir Hubert Wilkins, and Art Goebel, who was a test pilot for Guiberson Diesel engines. There are also a few images of diesel aircraft engines that were repurposed as wind machines to protect orchards from frost, and the manual, "Guiberson Radial Diesel Engine Instruction Manual for Model T-1020 Series 5."
Collection Item Long Description:
- Tremaine Humming Bird "The Spirit of John Rodgers"
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