__NOTOC__ The Weybridge Man Powered Aircraft (also known as ''Dumbo'' and later ''Mercury'') is a British single-seat man-powered aircraft built and flown by members of the Weybridge Man Powered Aircraft Group.

Development

The Weybridge Man Powered Aircraft Group was formed in late 1967 with members drawn from the

British Aircraft Corporation The British Aircraft Corporation (BAC) was a British aircraft manufacturer formed from the government-pressured merger of English Electric, English Electric Aviation Ltd., Vickers-Armstrongs, Vickers-Armstrongs (Aircraft), the Bristol Aeroplane ...

factory and the local chapter of the

Royal Aeronautical Society The Royal Aeronautical Society, also known as the RAeS, is a British multi-disciplinary professional institution dedicated to the global aerospace community. Founded in 1866, it is the oldest Aeronautics, aeronautical society in the world. Memb ...

. Construction started in 1968 and the aircraft was assembled at

Wisley Wisley is a village and civil parish in Surrey, England between Cobham and Woking, in the Borough of Guildford. It is the home of the Royal Horticultural Society's Wisley Garden. The River Wey runs through the village and Ockham and Wisley C ...

and flown for the first time from

Weybridge Weybridge () is a town in the Borough of Elmbridge, Elmbridge district in Surrey, England, around southwest of central London. The settlement is recorded as ''Waigebrugge'' and ''Weibrugge'' in the 7th century and the name derives from a cro ...

on 18 September 1971. The Weybridge MPA (which was named ''Dumbo'') was flown by Christopher Lovell for a distance of 46 metres with a height reached of 3 ft (0.9m). Only two flights were made at Weybridge and the aircraft was passed to another group at

RAF Cranwell Royal Air Force Cranwell or more simply RAF Cranwell is a Royal Air Force List of Royal Air Force stations, station in Lincolnshire, England, close to the village of Cranwell, near Sleaford. Among other functions, it is home to the RAF Colleg ...

who renamed it ''Mercury''.

Design

The aircraft is a low-wing cantilever

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 wings. A monoplane has inherently the highest efficiency and lowest drag of any wing con ...

with a

fuselage The fuselage (; from the French language, French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds Aircrew, crew, passengers, or cargo. In single-engine aircraft, it will usually contain an Aircraft engine, engine as wel ...

made from

aluminium Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has ...

alloy tubing with

balsa ''Ochroma pyramidale'', commonly known as balsa, is a large, fast-growing tree native to the Americas. It is the sole member of the genus ''Ochroma'', and is classified in the subfamily Bombacoideae of the mallow family Malvaceae. The tree is fa ...

frames and covered with Melinex. The wing has a single warren-girder main spar of aluminium alloy tubing with balsa ribs and, like the fuselage, covered with Melinex. The landing gear was a non-retractable

tandem Tandem, or in tandem, is an arrangement in which two or more animals, machines, or people are lined up one behind another, all facing in the same direction. ''Tandem'' can also be used more generally to refer to any group of persons or objects w ...

arrangement using

bicycle wheel A bicycle wheel is a wheel, most commonly a wire wheel, designed for a bicycle. A pair is often called a wheelset, especially in the context of ready built "off the shelf" performance-oriented wheels. Bicycle wheels are typically designed ...

s. The power is generated by the pilot in an enclosed

cockpit A cockpit or flight deck is the area, on the front part of an aircraft, spacecraft, or submersible, from which a pilot controls the vehicle. The cockpit of an aircraft contains flight instruments on an instrument panel, and the controls th ...

using bicycle pedals driving a two-bladed balsa

pusher propeller In aeronautical and naval engineering, pusher configuration is the term used to describe a drivetrain of air- or watercraft with propulsion device(s) after the engine(s). This is in contrast to the more conventional tractor configuration, whic ...

Specifications

External links

British Pathé - partial success in man-powered flight
- video of the Weybridge MPA

References

Notes

Bibliography

* {{refend Aircraft first flown in 1971 1970s British experimental aircraft Human-powered aircraft Single-engined pusher aircraft Low-wing aircraft Aircraft with fixed bicycle landing gear