|Role||Eight-passenger light transport monoplane|
|Primary user||Swiss Alpar|
The F.K.50 was designed to meet a requirement from the Swiss airline Swiss Alpar for a light transport capable of operating in Switzerland. The F.K.50 was a cantilever high-wing cabin monoplane with a fixed wide track tailwheel landing gear. The fuselage was of welded steel tube construction, covered with fabric. The tailplane was of similar construction. The wings were wooden construction, covered with plywood. It was powered by two Pratt & Whitney Wasp Junior T1B engines and had a conventional single fin and rudder. The first of two aircraft first flew on the 18 September 1935 and the second flew in March 1936.
A third aircraft, designated F.K.50A, was built in 1938 with a re-designed tail unit with twin vertical tail surfaces. It had a longer nose and larger mainwheels, with a higher all-up weight.
Twp bomber variants, designated F.K.50B, were proposed but never built. The first was a straight conversion of the F.K.50; the second would have been powered by Template:Cnvert Bristol Mercury VIS radial engines. It would have been operated by a crew of four and carried a 2,200 pounds (1,000 kg) bomb load.
The sole F.K.50A, the aircraft was delivered in 1938. It also operated between Berne and Croydon during World War II. In 1947, it was sold to Liberian operator Maryland Flying Services and re-registered EL-ADV, operating with them until 6 July 1962 when it crashed near Monrovia.
- Two built, single vertical tail. The second aircraft had larger engine nacelles than the first.
- One built, twin tail, longer nose, bigger mainwheels, Higher all-up weight.
- Proposed Bomber variant, not built.
- Maryland Flying Services
Data from The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing. p. 2260.
- Crew: 2
- Capacity: eight passengers
- Length: 14.30 m (46 ft 11 in)
- Wingspan: 17.70 m (58 ft 0¾ in)
- Gross weight: 4250 kg (9369 lb)
- Powerplant: 2 × Pratt & Whitney Wasp Junior TB radial engines, 303 kW (406 hp) each each
- Maximum speed: 295 km/h (183 mph)
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- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing. p. 2260.