Design Innovation
Charlie Wolff's Velox Revolution II emerged during a pivotal period in aerobatic aviation when traditional aluminum construction dominated unlimited-category competition aircraft. Wolff, a master craftsman and professional pilot, pioneered the use of composite materials in high-performance aerobatics, predating similar innovations by manufacturers like MX Aircraft and Sbach by several years. The Revolution II's airframe utilized carbon fiber and Kevlar throughout its structure, achieving remarkable strength-to-weight ratios that would later become standard in modern aerobatic designs.
The aircraft's most revolutionary feature was its wing-removal system, engineered around a 7.5-foot box spar that passed completely through the fuselage. Wing panels overlapped at the aircraft's centerline and secured at five attachment points, enabling complete wing removal in just 8 minutes and reinstallation in 20 minutes. The first 2.5 feet of each wing panel integrated directly into the fuselage structure, providing exceptional rigidity while maintaining the quick-disconnect capability that made the Revolution II truly transportable.
Manufacturing and Production
Velox Aviation, founded and operated by Charlie Wolff, manufactured both the single-seat Revolution I and two-seat Revolution II from their United States facility beginning in the mid-1990s. By 2017, Wolff had completed 10 aircraft across both variants, reflecting the specialized nature of unlimited aerobatic aircraft production. The Revolution I maintained an empty weight of approximately 1,150 pounds, while the dual-cockpit Revolution II weighed just 50 pounds more at 1,200 pounds empty.
The manufacturing process emphasized Wolff's commitment to creative freedom in design, utilizing composite construction techniques when most competitors relied on traditional materials and methods. Each aircraft featured a forward-pivoting dome canopy capable of opening with the engine running and designed to automatically close in wind conditions, demonstrating the attention to operational practicality that characterized Wolff's approach.
Aerodynamic Design
The Revolution II's configuration drew inspiration from proven aerobatic designs while incorporating modern materials and construction techniques. Its tail surfaces resembled those of the Sukhoi aerobatic aircraft series, providing superior control authority throughout the extreme flight envelope demanded by unlimited competition flying. The low-wing design optimized the aircraft for the precise control inputs required in competition aerobatics while maintaining the structural integrity necessary for repeated high-G maneuvers.
Powered by conventional piston engines suitable for aerobatic operations, the Revolution II's lightweight composite construction allowed for impressive power-to-weight ratios despite the additional weight of dual cockpit accommodation. The aircraft's design prioritized reliability under extreme aerobatic conditions, where traditional aircraft might experience structural fatigue or control system limitations.
Legacy and Influence
The Velox Revolution II earned recognition as a "real American Hot Rod" for its innovative transport system and structural engineering, receiving coverage in Sport Aerobatics magazine in July 1996. Editor Karen Diamond highlighted the aircraft's significance in advancing aerobatic aircraft design through its composite construction and practical transportability features.
The Revolution II's influence extended beyond full-scale aviation into the radio-controlled aircraft market, where multiple manufacturers produced scale models. Orion Models of the Czech Republic offered a wood and foil construction version with a 2.56-meter wingspan, while KRILL Aircraft developed an all-composite version at 47 percent scale with a 3.5-meter span. Maxair contributed a 1730mm wingspan ARF kit, demonstrating the design's appeal across various scales and construction methods.
Current Status
Velox Aviation's current operational status remains unclear, with no evidence of ongoing production or support operations. The company's limited production run of 10 aircraft across both Revolution variants reflects the specialized market for unlimited aerobatic aircraft and the intensive manufacturing requirements of composite construction in the 1990s.
The Revolution II's primary significance lies in its role as a pioneer of composite construction in aerobatic aviation, demonstrating the viability of advanced materials in high-stress applications years before such construction became commonplace. Its innovative wing-removal system addressed a persistent challenge in aerobatic aviation, where aircraft size often complicated transportation to competition venues, establishing design principles that continue to influence modern aerobatic aircraft development.