CMC Leopard
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The CMC Leopard was a British light personal
business jet A business jet, private jet, or bizjet is a jet aircraft designed for transporting small groups of people. Business jets may be adapted for other roles, such as the evacuation of casualties or express parcel deliveries, and some are used by pub ...
developed in the 1980s. Two
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s were built and flown, but the type was never put into production.


Design and development

The Leopard was a twin-jet, mid-wing
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 ...
of
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with all-swept flying surfaces and
jet fighter Fighter aircraft are fixed-wing aircraft, fixed-wing military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air supremacy, air superiority of the battlespace. Domination o ...
-like styling, apart from the podded engines, mounted on each side of the rear fuselage. The entire
canopy Canopy may refer to: Plants * Canopy (biology), aboveground portion of plant community or crop (including forests) * Canopy (grape), aboveground portion of grapes Religion and ceremonies * Baldachin or canopy of state, typically placed over an a ...
hinged forward to allow access to the four reclining seats. A
mockup In manufacturing and design, a mockup, or mock-up, is a scale or full-size model of a design or device, used for teaching, demonstration, design evaluation, promotion, and other purposes. A mockup may be a ''prototype'' if it provides at leas ...
was completed in 1982, leading to a prototype (
registration Register or registration may refer to: Arts entertainment, and media Music * Register (music), the relative "height" or range of a note, melody, part, instrument, etc. * ''Register'', a 2017 album by Travis Miller * Registration (organ), th ...
) built by the Designability company. The prototype first flew late in 1988. Development suffered a major setback when the engine manufacturer,
Noel Penny Turbines Noel Penny Turbines was a British company that produced small jet engines, most notably the Noel Penny NPT301. It was established in Coventry in 1972 by Noel Penny, a former designer and chief engineer from Rover Gas Turbines in Solihull. The co ...
, ceased business, leading to the grounding of the prototype. A second, refined prototype (registration ) was then constructed to use
Williams International Williams International is an American manufacturer of small gas turbine engines based in Pontiac, Michigan, United States. It produces jet engines for cruise missiles and small jet aircraft. History Dr. Sam B. Williams worked at Chrysler on th ...
turbofan The turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft engine, aircraft propulsion. The word "turbofan" is a portmanteau of "turbine" and "fan": the ''turbo'' portion refers to a gas turbine engine which ac ...
s. This aircraft also incorporated a pressurised cabin, revised
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 ...
, and a generally strengthened airframe. This second prototype was unveiled at the 1996
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and first flew on 9 April 1997. The project never progressed beyond the two aircraft built, later redesignated Leopard Four to distinguish them from a six-seat variant proposed in 2001, the Leopard Six. The EJ22 engine could no longer be used due to exclusive deal between Williams and Eclipse, resulting in the Six being proposed to make use of the larger FJ33. Chief aircraft designer and CMC chairman Ian Chichester-Miles died in 2009, bringing the enterprise to an end.


Aircraft on display

Until 2007, both prototype Leopards, G-BKRL and G-BRNM, were on display at the
Bournemouth Aviation Museum The Bournemouth Aviation Museum is an Aerospace museum, aviation museum located next to Bournemouth Airport, Bournemouth International Airport, near the village of Hurn in Christchurch, Dorset, Christchurch. It houses a number of aircraft, Aircr ...
. With the museum temporary closure and relocation in 2008, only the former was retained and moved to the new site, while G-BRNM was acquired by the
Midland Air Museum The Midland Air Museum (MAM) is situated just outside the village of Baginton in Warwickshire, England, and is adjacent to Coventry Airport. The museum includes the ''Sir Frank Whittle Jet Heritage Centre'' (named after the local aviation pione ...
at Coventry Airport.


Specifications (second prototype)


References

* * {{Portalbar, England, Transport Chichester-Miles aircraft 1980s British business aircraft Abandoned civil aircraft projects of the United Kingdom Twinjets Mid-wing aircraft Aircraft first flown in 1988