Stout 2-AT

Stout 2-AT
Name	Stout 2-AT
Type	Transport aircraft
Manufacturer	Stout Metal Airplane Company
First flight	1926

Stout 2-AT

The Stout 2-AT was an early all-metal transport aircraft developed in the United States in the 1920s. Designed by William Bushnell Stout and produced by the Stout Metal Airplane Company, the 2-AT explored applications in commercial airmail and passenger operations and influenced later designs at Ford Motor Company and other manufacturers. Its development intersected with notable figures and organizations in aviation such as Henry Ford, William Boeing, Glenn Curtiss, and institutions including the National Advisory Committee for Aeronautics and the Airmail Act of 1925.

Design and Development

The 2-AT emerged from William Stout's work on all-metal construction and monoplane layouts inspired by contemporaries like Anthony Fokker and Hugo Junkers. Stout's firm applied stressed-skin and corrugated-sheet techniques similar to those explored by Junkers and contrasted with wood-and-fabric designs used by Kelly Johnson-era firms and earlier Curtiss biplanes. The aircraft featured a high-wing, strut-braced monoplane arrangement, a mixed-use fuselage emphasizing structural integrity favored by advocates such as Igor Sikorsky and Donald Douglas. Funding and industrial interest drew attention from industrialists including Henry Ford and executives at Ford Motor Company, who later incorporated Stout's concepts into projects like the Ford Trimotor, with input from engineers associated with Curtiss Aeroplane and Motor Company and designers connected to Boeing Airplane Company.

The 2-AT's powerplant choices and aerodynamic testing were influenced by early work at facilities like the Langley Research Center and by engine developments from companies such as Wright Aeronautical and Pratt & Whitney. Its construction reflected the era's transition pursued by organizations including Kelly Field and U.S. Air Mail Service operators, and it competed for contracts alongside designs promoted by figures like Jimmy Doolittle and industrial concerns such as Lockheed Corporation.

Operational History

Operators evaluated the 2-AT for roles in air mail service and commercial passenger transport in competition with aircraft used by carriers such as Pan American World Airways, Transcontinental Air Transport, and early divisions of United Airlines. Demonstrations and trials involved flights to airfields frequented by pioneers like Bert Acosta and Eddie Rickenbacker, and the type was showcased at events aligned with National Air Races and exhibitions endorsed by organizations including the Smithsonian Institution's National Air and Space Museum predecessors.

The aircraft influenced procurement and design choices by governmental entities such as the Post Office Department and by commercial firms negotiating routes under regulations resulting from the Kelly Act and decisions informed by civil aeronautics discussions at meetings attended by representatives of Ferdinand von Zeppelin-associated companies and newer concerns like Douglas Aircraft Company.

Variants

Several experimental and proposed variants of the 2-AT reflected iterative changes comparable to variant development at firms including Lockheed, Boeing, and Douglas. These prototypes experimented with different powerplants akin to engines from Curtiss, Wright, and Pratt & Whitney, and considered cabin arrangements paralleling seating experiments by Fokker and Ford Trimotor programs. Later derivatives and lessons from the 2-AT affected design choices implemented in production models by Ford Motor Company engineers and informed discussions between designers such as William Stout and industrialists like Henry Ford.

Specifications

General characteristics, performance figures, and dimensions reported for the 2-AT followed conventions used in contemporary documentation by Flight International and technical reports circulated among institutions such as the National Advisory Committee for Aeronautics and Langley Research Center. Published data compared the 2-AT with types from Junkers, Fokker, and Douglas Aircraft Company with respect to payload, range, and cruise speed used by operators including Pan American World Airways and the U.S. Air Mail Service.

Accidents and Incidents

Operational accidents and incidents involving early all-metal transports were investigated by authorities connected to civil aviation boards and airline safety committees influenced by standards from organizations like the Federal Aviation Administration's predecessors and reports archived by institutions such as the Smithsonian Institution. Lessons from mishaps involving contemporaneous types shaped airworthiness practices adopted later by manufacturers including Ford Motor Company, Boeing, and Douglas.

Category:1920s United States civil aircraft Category:Single-engined tractor aircraft