The Fokker Atlantic Y1C-14 and A and B variants (AF-14)

Y1C-14

The Y1C-14 was the military variant of the civilian F-14 and was used for cargo, parachuting, and other military roles by the USAAC.

Twenty Y1C-14s were built, some of which were later modified and given a different type designation.

The registrations ran from AC 31-381 to AC 31-400.

All Y1C-14s were used by the USAAC from 1931 onwards.

The Y1C-14s with registration AC 31-381/388 and AC 31 390/399 were later adopted as a type C-14 indicated.

The Y1C-14 flew as standard with a single 525 hp Wright Cyclone R-1750-3 engine.

Y1C-14A

The last of the 20 Y1C-14s produced was fitted in 1931 with a 575 hp Wright Cyclone R-1820-7 engine with a three-bladed propeller in place of the standard two-bladed propeller.A

This was the reason why this version was first referred to as Y1C-14A and later as C-14A

Y1C-14B

The first Y1C-14 (with cn 1801) was fitted with a 525 hp Pratt & Whitney R-1690-5 Hornet engine after a test period.

With this engine the Y1C-14 was first designated as the type Y1C-14B and later as C.14B

This B-version made the world's first auto-pilot landing on August 23, 1937 at Wright Field, near Dayton, Ohio.

The built-in autopilot system consisted of a barometer/altimeter, a radio compass and an autopilot from the Sperry company.

The Sperry Company remains one of the largest manufacturers of autopilot systems.

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