The
Ford trimotor was based on the Stout 2-AT Pullman. The
prototype 4-ATTrimotor first flew in 1926.
The 4-AT and improved 5-AT were the most
produced Ford Trimotors with around 200 being built when production
ended in 1932. The designation "AT" stood for
"Air Transport".
Also known as the "Tin Goose",
the Ford Trimotor was also purchased by the U.S. Army and Navy.
Specifications
(5-AT-D)
Designations
Type: Commercial
Capacity: 17 passengers
Engines: three 420 hp (313 kW) Pratt
& Whitney C-1 or SC-1 Wasp radial piston engines
4-AT: original production version
5-AT: improved 4-AT
C-3: U.S. Army transport with Wright
R-790 engines
C-4: U.S. Army transport with P&W
R-1340 engines
C-9: U.S. Army transport C-3 with Wright
R-975 engines