Development and Innovation
The B23 Energic emerged from BRM AERO's strategic vision to lead aviation's electric revolution, building upon their successful conventional B23 trainer platform. The Czech manufacturer partnered with H55, a Swiss electric propulsion company founded by former Solar Impulse team members, to transform their proven airframe into aviation's first practical electric trainer. H55 derived its name from Hangar 55, commemorating Solar Impulse 2's remarkable five-day, five-night flight from Hawaii to California.
The development process involved replacing the standard B23's Rotax piston engine with H55's sophisticated electric motor and battery system while maintaining the aircraft's proven aerodynamic characteristics. This approach allowed BRM AERO to leverage their existing type certification foundation while pioneering electric propulsion technology.
Technical Specifications and Performance
The B23 Energic measures 21.6 feet in length with a 30.4-foot wingspan and stands 7.7 feet high. The aircraft features a three-blade, fixed-pitch carbon composite propeller driven by H55's electric motor system. The test prototype operates at a maximum takeoff weight of 1,874 pounds, though production aircraft will increase this to 1,984 pounds.
The electric propulsion system provides 60 minutes of flight time plus a 10-minute energy reserve, specifically designed to accommodate standard flight training missions. The battery system carries a guarantee of at least 1,500 charge cycles, equivalent to a traditional piston engine's time between overhaul requirements. When batteries require replacement, newer technology will likely extend the aircraft's endurance capabilities.
The standard mission profile includes six training circuits, equivalent to a typical one-hour flight school program with 30-minute reserves under ISA+10°C conditions. This endurance meets practical training requirements while introducing student pilots to electric aviation technology.
Manufacturing Excellence
BRM AERO, established in 2009, achieved remarkable growth by delivering over 1,000 aircraft within 15 years of operation. The company reached this milestone in 2024, with 112 Bristell models delivered that year alone, demonstrating consistent production rates exceeding 100 aircraft annually. The manufacturer produces seven distinct light sport and ultralight aircraft models, positioning itself as a major force in the general aviation training market.
The company's product lineup includes the conventional B23 with 100-horsepower Rotax 912iS engines, the turbocharged B23 Turbo with 141-horsepower Rotax 915iS powerplants, the retractable-gear Bristell RG, and the high-wing B8 variant. This diversification provided the foundation for the electric B23 Energic development.
Certification Strategy and Timeline
H55 plans to complete European Union Aviation Safety Agency certification by 2026, with initial deliveries to European customers beginning that year. United States certification will follow in 2027, when American customers can expect deliveries of aircraft equipped with larger battery capacity systems providing approximately 60 minutes of flight time with 30-minute reserves.
The certification approach prioritizes EASA approval first, taking advantage of different energy reserve requirements between European and American regulations. This strategy allows faster market entry while developing larger battery systems for more stringent U.S. requirements.
Training Applications and Market Impact
The B23 Energic specifically targets the flight training market, where its quiet operation and lower operating costs offer significant advantages over conventional piston-powered trainers. Flight schools can conduct pattern work and local training flights without noise concerns while dramatically reducing fuel costs and maintenance requirements associated with traditional powerplants.
The aircraft's electric propulsion eliminates the complexity of mixture control, carburetor heat, and engine management procedures that can overwhelm beginning students. This simplification allows instructors to focus on fundamental flying skills rather than powerplant management, potentially improving training efficiency and safety.
Strategic Partnerships and Future Development
Beyond the B23 Energic program, H55 maintains strategic partnerships extending electric aviation technology to larger aircraft. The company collaborates with Pratt & Whitney Canada on energy storage systems for a hybrid-electric, 49-seat de Havilland Canada DHC-8 Q400 demonstrator, indicating broader applications for their technology.
BRM AERO continues developing additional variants, including a B23 model equipped with the Rotax 916iS engine specifically for the U.S. market's upcoming Mosaic regulations. This diversification ensures the company remains competitive across multiple market segments while pioneering electric aviation technology.