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Fokker-Atlantic C-2 & C-7 Trimotor

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.

RA-1

Redesignation of the TA-1.

RA-2

Redesignation of the TA-2.

RA-3

Redesignation of the TA-3.

Specifications

Crew

2

Capacity

8 passengers

Length

14.50 m (47 ft 7 in)

Wingspan

21.71 m (71 ft 3 in)

Wing area

67.6 m2 (728 sq ft)

Airfoil

Root

Goettingen 386 (20%)

Tip

Goettingen 388 (11.3%)

Empty weight

3,100 kg (6,834 lb)

Gross weight

5,300 kg (11,684 lb)

Powerplant

3 × Wright J-6 Whirlwind,

9-cylinder air-cooled radial piston engine,

220 kW (300 hp) each

Performance

Maximum speed

210 km/h (130 mph, 110 kn)

Cruise speed

178 km/h (111 mph, 96 kn)

Range

1,200 km (750 mi, 650 nmi)

Service ceiling

4,400 m (14,400 ft)

Take-off and landing runs

225 m (738 ft).

 

 

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