The AMF Chevvron is a British two-seat

microlight Ultralight aviation (called microlight aviation in some countries) is the flying of lightweight, 1- or 2-seat fixed-wing aircraft. Some countries differentiate between weight-shift control and conventional three-axis control aircraft with aile ...

aircraft of the 1980s and 90s. It is a single engined mid-winged

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 ...

with side-by-side seating. 41 were built.

Design and development

The Chevvron was designed to meet a requirement for an aircraft conforming with the

Civil Aviation Authority A civil aviation authority (CAA) is a national or supranational statutory authority that oversees the regulation of civil aviation, including the maintenance of an aircraft register. Role Due to the inherent dangers in the use of flight vehicles, ...

's regulations for microlight aircraft and fitted with conventional three-axis controls. The Chevvron is a mid-wing

with a pod-and boom configuration and high aspect ratio wings. It is built of

composite material A composite material (also called a composition material or shortened to composite, which is the common name) is a material which is produced from two or more constituent materials. These constituent materials have notably dissimilar chemical or ...

s and is fitted with a fixed nosewheel undercarriage. The normal powerplant was a single König SD 570

two-stroke A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a Thermodynamic power cycle, power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being comple ...

, four-cylinder air-cooled

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 ...

rated at and driving a three-bladed propeller.''Flight International'' 18 October 1985, p. 18.Simpson ''Air Pictorial'' February 1988, p. 49. The first prototype, fitted with a

V-tail The V-tail or ''Vee-tail'' (sometimes called a butterfly tail or Rudlicki's V-tailGudmundsson S. (2013). "General Aviation Aircraft Design: Applied Methods and Procedures" (Reprint). Butterworth-Heinemann. p. 489. , 9780123973290) of an aircraft ...

, made its maiden flight in late 1983. A modified second prototype, with a conventional tail flew in October 1986.

Operational history

AMF Microflight began production of the Chevvron in 1987, with 19 completed at their Membury factory by 1990. A single example was built of the Sea Chevvron, a

floatplane A floatplane is a type of seaplane with one or more slender floats mounted under the fuselage to provide buoyancy. By contrast, a flying boat uses its fuselage for buoyancy. Either type of seaplane may also have landing gear suitable for land, ...

version fitted with a more powerful () König engine,''Flight International'' 3 October 1987, p. 15. while examples were also fitted with a Limbach engine. In total, 41 Chevvrons were built.Gunston 2005, p. 26. In the 1990s, as single-rotor wankel engine from the

MidWest AE series The MidWest AE series are lightweight, liquid-cooled, single- and twin-rotor Wankel engines, with dual ignition, designed for light aircraft. They were produced by Mid-West Engines Ltd. at Staverton Airport, Gloucestershire, UK. History This en ...

was successfully fitted to a Chevvron.

Specifications

References

* * * * *{{cite magazine, last=Simpson, first=Roderick, title=Contemporary Focus: AMF Chevvron, magazine=

Air Pictorial ''Air Pictorial'' was a British aviation magazine covering contemporary and historical military and civil aviation topics. By 2002, when the magazine was renamed ''Aviation News'' (a title that had been incorporated into it six years previously ...

, date=February 1988, volume= 50, issue= 2, page=49 1980s British sport aircraft Mid-wing aircraft Single-engined tractor aircraft Aircraft first flown in 1983