The Caudron C.67 was a simple single seat

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 ...

with a low powered engine. It was built and flown in

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

in 1922.

Design and development

The C.67 was, apart from its

undercarriage Undercarriage is the part of a moving vehicle that is underneath the main body of the vehicle. The term originally applied to this part of a horse-drawn carriage, and usage has since broadened to include: *The landing gear of an aircraft. *The ch ...

, an all wood-framed aircraft with fabric covering. It was a

single bay 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 ...

biplane with wings that were rectangular in plan apart from angled tips, had equal spans and were mounted without stagger. The lower wings were mounted on the lower

fuselage The fuselage (; from the French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds crew, passengers, or cargo. In single-engine aircraft, it will usually contain an engine as well, although in some amphibious aircraft t ...

longeron In engineering, a longeron and stringer is the load-bearing component of a framework. The term is commonly used in connection with aircraft fuselages and automobile chassis. Longerons are used in conjunction with stringers to form structural ...

s, with the upper wing braced to it by parallel pairs of vertical interplane struts. Four similar but shorter

cabane strut In aeronautics, bracing comprises additional structural members which stiffen the functional airframe to give it rigidity and strength under load. Bracing may be applied both internally and externally, and may take the form of strut, which act in ...

s connected the upper fuselage and upper wing centre section; bracing wires ensured structural stability. The upper wing was built in two parts and carried the

aileron An aileron (French for "little wing" or "fin") is a hinged flight control surface usually forming part of the trailing edge of each wing of a fixed-wing aircraft. Ailerons are used in pairs to control the aircraft in roll (or movement around ...

s. Its fuselage was also simple, with a rectangular section apart from the curved upper decking. The underside curved upwards strongly near the nose, where its three-cylinder Anzani

radial engine The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is ca ...

was cowled with its cylinders projecting for cooling. There was a single, open

cockpit A cockpit or flight deck is the area, usually near the front of an aircraft or spacecraft, from which a Pilot in command, pilot controls the aircraft. The cockpit of an aircraft contains flight instruments on an instrument panel, and the ...

under the wing, which had a wide cut-out in its trailing edge to improve upward visibility. At the rear a broad, triangular

fin A fin is a thin component or appendage attached to a larger body or structure. Fins typically function as foils that produce lift or thrust, or provide the ability to steer or stabilize motion while traveling in water, air, or other fluids. Fin ...

carried an angular, unbalanced rudder, which reached down to the keel. Since the

tailplane A tailplane, also known as a horizontal stabiliser, is a small lifting surface located on the tail (empennage) behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixed-wing aircraft such as helicopters and gyroplane ...

, with a plan similar to that of the wings, was mounted on top of the fuselage, the

elevator An elevator or lift is a wire rope, cable-assisted, hydraulic cylinder-assisted, or roller-track assisted machine that vertically transports people or freight between floors, levels, or deck (building), decks of a building, watercraft, ...

s required a cut-out for rudder movement. The C.67 had a fixed tailskid undercarriage. its mainwheels were on a steel single axle sprung to a pair a steel V-form struts, assisted by wire bracing. The C.67 was flying regularly by mid-May 1922, piloted by Poirée, and performing aerobatics. It was exhibited at the 1922 Paris Salon that December. The prototype was the only example of the C.67.

Specifications

References

{{Caudron aircraft C.067 1920s French sport aircraft Biplanes Single-engined tractor aircraft Aircraft first flown in 1922