The C-2 & C-7 aircraft are licence-built Fokker F.VII by its US subsidiary ‘Atlantic Aircraft Corporation’
Variants
F.VII
Single-engine transport aircraft, powered by a 360 hp (270 kW) Rolls-Royce Eagle or 450 hp (340 kW) Napier Lion engine, accommodation for two crew and eight passengers, 5 built.
One converted to use 400 hp (300 kW) Bristol Jupiter and two to use 480 hp (360 kW) Gnome-Rhône Jupiter VI engine.
C-2
Military transport version of the Fokker F.9, powered by three 220 hp (164 kW) Wright J-5 radial piston engines, accommodation for two pilots and ten passengers, 3 built in 1926 for the US Army Air Corps.
C-2A
Military transport version for the US Army Air Corps, with greater wingspan, powered by three 220 hp (164 kW) Wright J-5 radial piston engines, accommodation for two pilots and ten passengers, 8 built in 1928.
XC-7
One C-2A fitted with three 330 hp (246 kW) Wright J-6-9 radial piston engines.
Redesignated C-7 when four C-2A examples were similarly reconfigured.
C-7
Military transport conversion of C-2A for the US Army Air Corps by replacing the engines with 300 hp (220 kW) Wright R-975 engines.
XC-7 prototype and four C-2As redesignated in 1931.
C-7A
Six new production C-7 (Wright R-975) aircraft with larger wings, new vertical fin design, and fuselages patterned after the commercial F.10A.
XLB-2
Experimental light bomber version of the C-7, powered by three 410 hp (306 kW) Pratt & Whitney R-1380 radial piston engines, 1 built.
TA-1
Military transport version of the US Navy and Marine Corps, 3 built.
TA-2
Military transport version for the US Navy, 3 built.
TA-3
Military transport version for the US Navy, powered by three Wright J-6 radial piston engines; one built.