The EKW C-35 was a 1930s

Swiss Swiss may refer to: * the adjectival form of Switzerland * Swiss people Places * Swiss, Missouri * Swiss, North Carolina *Swiss, West Virginia * Swiss, Wisconsin Other uses *Swiss-system tournament, in various games and sports *Swiss Internation ...

two-seat reconnaissance

biplane A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While ...

aircraft built by the Swiss Federal Construction Works (

Eidgenoessische Konstruktionswerkstaette ''Eidgenössische Konstruktionswerkstätte'' English: "Federal Constructions Works", short K+W, was a Swiss state-owned enterprise, with the aim of making the Swiss military independent of foreign sources for its equipment needs. It was establishe ...

, K+W),

Thun , neighboring_municipalities= Amsoldingen, Heiligenschwendi, Heimberg, Hilterfingen, Homberg, Schwendibach, Spiez, Steffisburg, Thierachern, Uetendorf, Zwieselberg , twintown = , website = www.thun.ch Thun (french: Thoune) ...

Development

Two aircraft were designed by the Eidgenössische Konstruktions Werkstätte to replace the

Fokker C.V The Fokker C.V was a Dutch light reconnaissance and bomber biplane aircraft manufactured by Fokker. It was designed by Anthony Fokker and the series manufacture began in 1924 at Fokker in Amsterdam. Development The C.V was constructed in the earl ...

e which the Swiss Air Force were using. The two projects were the EKW C-35 biplane and the

EKW C-36 The EKW C-36 was a Swiss multi-purpose combat aircraft of the 1930s and 1940s, built by the Eidgenoessische Konstruktionswerkstaette. It was a single-engined monoplane with a crew of two. It entered service during World War II in 1942, and despit ...

monoplane A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes. A monoplane has inherently the highest efficiency and lowest drag of any wing confi ...

. After evaluation the air force ordered 40 C-35s in 1936. Additional aircraft were built from spares. The C-35 was a two-seat biplane with fixed

tailwheel landing gear Conventional landing gear, or tailwheel-type landing gear, is an aircraft Landing gear, undercarriage consisting of two main wheels forward of the Center of gravity of an aircraft, center of gravity and a small wheel or skid to support the tail ...

and conventional tail unit. The aircraft was powered by a Hispano-Suiza HS-77 V-12

piston engine A reciprocating engine, also often known as a piston engine, is typically a heat engine that uses one or more reciprocating pistons to convert high temperature and high pressure into a rotating motion. This article describes the common featu ...

(licence-built

Hispano-Suiza 12Ycrs The Hispano-Suiza 12Y was an aircraft engine produced by Hispano-Suiza for the French Air Force before the Second World War. The 12Y became the primary French 1,000 hp (750 kW) class engine and was used in a number of famous aircraft ...

Operational history

The first aircraft was delivered to the Swiss Air Force in May 1937, and all had been delivered by the end of 1938. To supplement the aircraft in-service a further eight aircraft were built between 1941 and 1942 from spares. The aircraft were removed from front-line service in 1943 when replaced by the F&W C-3603 and transferred to night-flying units. The aircraft was withdrawn from service in 1954.

Operators

; * Swiss Air Force

Specifications (C-35)

References

Bibliography

*{{cite journal , last1=Cortet, first1=Pierre, title=Rétros du Mois , journal=Avions: Toute l'aéronautique et son histoire , date=June 1998 , issue=75 , page=4 , trans-title=Retros of the Month , language=French , issn=1243-8650 Aircraft manufactured in Switzerland 1930s Swiss military reconnaissance aircraft Single-engined tractor aircraft Biplanes Aircraft first flown in 1930