Atlantic-Fokker C-7

The Atlantic-Fokker C-7 was a high-wing trimotor transport flown by the U.S. Army Air Corps during the late 1920s and early 1930s. It was built by the Atlantic Aircraft Corporation, Fokker's American subsidiary, and was developed from the earlier C-2 series by fitting more powerful Wright Whirlwind radial engines and revised wings. Carrying a crew of two and several passengers or cargo, the C-7 was used for liaison, personnel transport, and supply duties.

The most famous aircraft of the line was the "Question Mark," originally a C-2A later converted to C-7 standard, which in 1929 set an endurance record by remaining aloft for nearly 151 hours using aerial refueling. The C-7 and its variants were among the Army's principal transport aircraft of the interwar period before purpose-built designs superseded them.