Timm Aircoach

Last updated
Timm Aircoach L'Air November 15,1928.jpg
RoleCabin biplane
National origin United States
Manufacturer O.W. Timm Aircraft Company [1]
Designer Otto Timm
IntroductionSeptember 1928
Number built1

The Timm Aircoach, also called the Timm Coach and the Golden Shell Special, was a custom-built, high-capacity, high altitude aircraft for charter flights. [2]


Design and development

The Aircoach was built in a shop at Glendale Airport, where Otto and Wally Timm had a shop. Al Menasco had a shop nearby where he modified engines. The Aircoach used a Menaso modified Salmson engine.

The Aircoach was a single engine, conventional landing gear equipped biplane with an open cockpit for two pilots and enclosed passenger cabin. The fuselage was made of welded steel tubing with plywood covering. [3]

Operational history

Roscoe Turner flew the underpowered Shell Special Golden Shell twice, attempting endurance records. Each flight resulted in damage and the efforts were abandoned. [3]

Specifications (Aircoach)

Data from Jane's all the World's Aircraft 1928, [4] Aerofiles:Timm [5]

General characteristics


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  1. Cooper, Ralph S. "Otto W. Timm". earlyaviators.com. Retrieved 8 March 2018.
  2. Underwood, John (2006). Grand Central Air Terminal. Charleston, SC: Arcadia Pub. p. 36. ISBN   0-73854-682-8.
  3. 1 2 "unknown". Skyways (July 2001): 52.Cite uses generic title (help)
  4. Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 253c-254c.
  5. Eckland, K.O. "Timm". aerofiles.com. Retrieved 8 March 2018.