Brändli BX-2 Cherry

Brändli BX-2 Cherry: The Swiss Homebuilt That Turned Clever Design Into Practical Flying

The Brändli BX-2 Cherry is a fascinating example of what can happen when an aircraft designer approaches homebuilt aviation with the discipline of an engineer and the priorities of a practical pilot. Designed in Switzerland by Max Brändli, the Cherry is a two-seat, low-wing sport aircraft intended to give amateur builders a capable and economical personal airplane without requiring the industrial resources associated with conventional aircraft manufacturing. Its story began in 1979, when Brändli was already 55 years old and decided to develop an aircraft of his own. He constructed the prototype in the cellar of his home, performing the structural and aerodynamic calculations himself and supervising a building project that ultimately consumed approximately three and a half years and 5,500 hours of work. The finished aircraft first flew on 24 April 1982, with Brändli himself at the controls. From that remarkably personal beginning, the BX-2 developed into a successful plans-built aircraft, with more than 240 sets of plans reportedly sold and more than 100 completed aircraft by 2010.

The Origins of the Brändli BX-2 Cherry

The Cherry was born from the European homebuilt-aircraft tradition, where designers and builders have long sought ways to create capable personal aircraft without the expense of factory production. Max Brändli’s approach was particularly hands-on. Rather than merely producing a conceptual design and leaving construction to others, he performed the calculations, built the prototype and personally flew it. The aircraft was therefore developed from the beginning with practical construction and real-world flying in mind. Brändli began the design in 1979, and the project took several years to reach the flight-test stage. When the prototype finally took off on 24 April 1982, it represented the culmination of thousands of hours of work carried out largely through individual effort.

That origin story says a great deal about the character of the BX-2. It was not conceived as a mass-market touring aircraft that would eventually be manufactured in a modern factory. Instead, it was intended to be built by enthusiasts who wanted to participate directly in the creation of their aircraft. This meant that construction techniques, material availability, maintenance and transport all mattered alongside aerodynamic performance. Brändli consequently selected a combination of wood, foam and glass-fibre construction that provided a useful balance between structural efficiency and accessibility.

From Cellar Project to Established Homebuilt

The fact that the first Cherry was built in Brändli’s cellar is one of the most appealing details in the aircraft’s history, but it should not obscure the engineering behind the project. Brändli carried out the structural and aerodynamic calculations himself, meaning the aircraft was not simply an improvised homebuilt machine. Its design was carefully engineered, with a conventional low-wing configuration, retractable landing gear, flaps and a relatively sophisticated wing structure. The prototype’s construction reportedly required around 5,500 hours, illustrating just how much work could be involved in creating a clean-sheet aircraft from scratch.

The subsequent availability of plans allowed other builders to reproduce the aircraft without repeating that entire development process. By early 1991, Jane’s reported that 140 sets of plans had been sold, while later records indicate that more than 240 sets had been sold and more than 100 aircraft had been completed by 2010. The numbers demonstrate that the Cherry moved well beyond being a one-off personal project and became a genuine homebuilt aircraft design with an international following.

A Modern-Looking Design With Traditional Roots

The Brändli BX-2 Cherry has a distinctive appearance that separates it from many amateur-built aircraft of its era. It is a low-wing monoplane with a relatively clean fuselage, retractable tricycle landing gear and a large canopy covering the two-seat cockpit. The occupants sit side by side, giving the aircraft a practical configuration for recreational flying and touring. Rather than adopting the tandem cockpit arrangement common in many trainers and military aircraft, Brändli chose a layout that makes the Cherry feel more like a compact personal touring airplane.

The wing is particularly interesting. Its inner sections have a constant chord and incorporate flaps, while the outer portions taper toward the tips and contain the ailerons. The wing structure combines wooden spars with Styrofoam cores and a glass-fibre covering. This construction method allows the designer to create relatively smooth aerodynamic surfaces while retaining a structural approach that can be accomplished by a dedicated homebuilder. The wings can also be removed relatively quickly, making the aircraft easier to transport and store.

Wood, Foam and Glass Fibre

The combination of wood and composite materials is central to the Cherry’s design philosophy. Wood provides a familiar structural material for spars and the fuselage framework, while foam cores and glass fibre permit the creation of smooth aerodynamic surfaces without requiring the complex metal forming associated with an all-metal aircraft.

The fuselage itself uses a wooden framework with plywood and glass-fibre covering. This approach gives the builder access to traditional woodworking techniques while still producing a streamlined external shape. The result is a hybrid construction philosophy: the aircraft is neither a traditional fabric-covered wooden airplane nor a completely composite modern aircraft. Instead, it takes useful characteristics from both approaches.

That compromise was well suited to the homebuilt environment. A builder with woodworking skills could construct much of the airframe, while the composite surfaces could provide the smoothness and aerodynamic cleanliness expected from a modern light aircraft. The design consequently looks considerably more sophisticated than many purely traditional homebuilts without abandoning the practical advantages of wood.

The Two-Seat Cockpit

One of the most important features of the BX-2 Cherry is its side-by-side seating arrangement. Two occupants can sit beneath a large forward-sliding canopy that provides an expansive field of view. For recreational flying, this arrangement has obvious advantages: the aircraft can be used for instruction, passenger flights, touring and general sport flying rather than being restricted to solo operation.

The canopy is also an important part of the aircraft’s aerodynamic design. Its large transparent area gives the Cherry a modern appearance and contributes to the pilot’s visibility. Compared with an open-cockpit homebuilt, the enclosed cabin provides protection from the airflow and weather while reducing aerodynamic drag.

The combination of two seats and a relatively compact airframe makes the Cherry a particularly interesting compromise. It is small enough to retain the character and economy of a homebuilt sport airplane, yet practical enough to carry a second person and useful baggage.

Designed for Everyday Use

The Cherry’s retractable tricycle landing gear further emphasizes its touring-oriented character. The main landing gear folds outward, while the nosewheel gives the aircraft the familiar ground-handling characteristics associated with conventional modern light aircraft. Brakes are incorporated into the landing-gear system. A fixed undercarriage is also an option, demonstrating once again that the design can be adapted to different priorities.

A retractable undercarriage inevitably adds mechanical complexity and weight, but it can reduce aerodynamic drag during cruise. For a relatively fast homebuilt aircraft, that trade-off can make sense. Builders who value simplicity may choose the fixed-gear arrangement, while those seeking improved aerodynamic performance can use the retractable system.

Engine Choices and the Cherry’s Flexibility

The prototype Brändli BX-2 was powered by a 65-horsepower Continental A65, an engine with a long history in light aviation. The choice was appropriate for a lightweight two-seat aircraft and demonstrated that the Cherry did not require a large or exotic engine to fly effectively. Later aircraft have used a wide range of powerplants, however, including Continental flat-fours, the Volkswagen-derived Limbach L.2400 and the Rotax 912. Some builders have even installed unusual alternatives, including the BMW R1200GS motorcycle-derived twin-cylinder engine.

This variety is one of the defining characteristics of the homebuilt-aircraft world. A factory aircraft normally has a fixed engine installation selected by its manufacturer, but a plans-built aircraft can evolve as technology, availability and builder preferences change. The Cherry’s airframe has therefore been paired with engines of different power levels and designs.

The original A65 installation is particularly useful when discussing the aircraft’s published performance because period specifications generally quote performance with that 65-horsepower engine. Later examples with more powerful engines can have substantially different performance, and individual aircraft may differ considerably in weight and equipment.

The BMW-Powered Cherry

The use of the BMW R1200GS-derived engine illustrates just how far builders have taken the basic design. Motorcycle engines can offer attractive power-to-weight ratios and compact installations, although adapting one for aircraft use involves engineering considerations that differ significantly from those encountered with certified aircraft engines.

The existence of such conversions highlights the Cherry’s experimental character. The aircraft was never intended to be locked into a single factory specification. Its design provided a platform that builders could adapt, provided those modifications were properly engineered and approved under the applicable regulations.

Performance of the BX-2 Cherry

With the original 65-horsepower Continental A65, published figures give the Cherry a maximum level speed of approximately 121 knots, or 140 mph, at around 3,000 feet. Its quoted maximum cruising speed is approximately 113 knots, or 130 mph. These figures are respectable for a lightweight two-seat homebuilt powered by a relatively modest engine.

The aircraft’s published stall speed with flaps down and at a specified lower gross weight is approximately 45 knots, while the maximum rate of climb is around 590 feet per minute at sea level. Jane’s also lists a service ceiling of approximately 13,775 feet, a range of roughly 539 nautical miles with maximum fuel and an endurance of approximately six hours.

These figures reveal the intended balance of the design. The Cherry is not an aerobatic specialist or a high-performance racing aircraft. Instead, it combines respectable speed with useful range, two-seat accommodation and reasonable low-speed handling. For private touring and recreational flying, that combination can be more valuable than extreme performance in any single category.

The Importance of the Removable Wings

The ability to remove the wings relatively quickly is another practical feature that can easily be overlooked when looking at photographs of the aircraft. A homebuilt airplane does not necessarily have access to a permanent hangar, and transporting an aircraft by road can be far easier when the wings can be detached.

For a builder, this also simplifies construction and maintenance. Individual wing panels can be worked on separately, and the completed aircraft can be moved through spaces that would otherwise be too small. The removable-wing arrangement therefore serves a practical purpose beyond convenience.

The design demonstrates how many seemingly minor decisions contribute to the overall success of a homebuilt aircraft. The Cherry is not simply a collection of aerodynamic and structural features; it is an integrated response to the realities faced by private builders and operators.

The Cherry in European Aviation

The BX-2’s Swiss origins did not prevent it from developing a wider European presence. By 2010, surviving aircraft were recorded in several countries, including Austria, the Czech Republic, France, Germany, the Netherlands, Switzerland, Slovenia and the United Kingdom. Contemporary aircraft records also show individual Cherries continuing to operate in Europe.

The continued presence of aircraft in countries across Europe is particularly appropriate given the Cherry’s origins. It is a distinctly European homebuilt design, created for a community in which amateur aircraft construction has long been an important part of general aviation.

Photographic and registration records show that the type remains represented among private aircraft. Individual examples have accumulated substantial service lives, and serial numbers well above 100 demonstrate that the design was built in meaningful numbers rather than remaining limited to a handful of prototypes.

The Prototype’s Final Chapter

The story of the original prototype has a tragic conclusion. The prototype, registered HB-YBX, reportedly flew around Europe for approximately 25 years. In 2009, it crashed after takeoff from Sundsvall-Härnösand Airport in Sweden, killing both its occupants, including Max Brändli.

The loss was especially significant because Brändli was not simply the designer of the aircraft; he had been its first pilot and had remained closely associated with the machine throughout its life. The accident consequently marked the end of an unusually personal chapter in the history of the Cherry.

Nevertheless, the design itself survived. The many aircraft built from Brändli’s plans ensured that his work continued to fly even after the loss of the prototype. In that sense, the Cherry became larger than its designer’s original aircraft.

Why the Brändli BX-2 Cherry Still Matters

The lasting appeal of the BX-2 Cherry comes from its balance. It combines a two-seat cabin, respectable speed, useful range, retractable landing gear and a relatively sophisticated aerodynamic configuration with a construction philosophy that remains accessible to dedicated homebuilders.

It is also an excellent example of how the homebuilt movement can produce aircraft that occupy a space between conventional general aviation and pure experimentation. The Cherry is not merely a machine assembled from whatever parts happen to be available. Its aerodynamic and structural design was carefully developed, yet the plans-built nature of the aircraft allows individual builders to select engines and equipment according to their own needs.

The aircraft therefore embodies the central attraction of experimental aviation: the owner is not merely a consumer. The builder can understand, modify and personalize the airplane. That relationship between pilot, builder and machine is one of the reasons aircraft such as the Cherry continue to attract enthusiasts decades after their original designs appeared.

Conclusion

The Brändli BX-2 Cherry is a remarkable product of Swiss homebuilt aviation and of Max Brändli’s determination to create a practical two-seat aircraft through his own engineering and construction work. Beginning as a project in a cellar in 1979, the aircraft evolved into a proven design that first flew in 1982 and eventually inspired hundreds of plans sales and more than a hundred completed aircraft.

Its appeal lies in the thoughtful combination of features. The wooden fuselage and composite-skinned wings provide a practical construction method; the low-wing layout gives the aircraft a clean aerodynamic form; the side-by-side cockpit makes it useful for two people; and the retractable landing gear helps it achieve respectable cruising performance. At the same time, removable wings, alternative fixed landing gear and a remarkable variety of possible engines give builders considerable flexibility.

The Cherry also demonstrates that homebuilt aircraft do not have to be crude or primitive. With a carefully designed wing, smooth composite surfaces and a retractable undercarriage, the BX-2 can achieve performance figures that remain useful for modern recreational flying. Its history is equally impressive, evolving from one man’s ambitious project into a recognizable European homebuilt type.

More than four decades after its first flight, the Brändli BX-2 Cherry remains an interesting example of personal aircraft design. It represents the freedom to design an aircraft around real-world priorities rather than around mass production, and it shows how a well-conceived homebuilt can survive through generations of builders and owners. The Cherry’s greatest achievement may therefore be its balance: sophisticated enough to be a genuinely capable airplane, yet sufficiently practical to retain the hands-on spirit that makes homebuilt aviation so compelling.

Brändli BX-2 Cherry Technical Specifications

The table below uses the published specifications for the original 65 hp Continental A65-powered configuration. Individual homebuilt aircraft can differ substantially because builders have used different engines, landing-gear arrangements and equipment.

Specifications can vary between individual aircraft, particularly because the BX-2 has been fitted with multiple engine types and both retractable and fixed landing gear.