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Cision Canada
15-07-2025
- Business
- Cision Canada
H55 DEMONSTRATES HIGH-DENSITY ALTITUDE ELECTRIC FLIGHT IN COLORADO, SHOWCASING AIRCRAFT PERFORMANCE IN EXTREME CONDITIONS
SION, Switzerland and CENTENNIAL, Colo., July 15, 2025 /CNW/ -- H55, the electric aviation pioneer born from the Solar Impulse project, has completed a series of high-density altitude, high- temperature demonstration flights in Colorado as part of its Across USA Tour. These tests confirm the real-world performance of the H55-powered Bristell B23 Energic, illustrating the operational performance of electric aviation. Operating in Challenging Conditions The Colorado mission flights took place from an airfield situated at 5,800 feet above sea level, with temperatures reaching 36°C (96.8°F) and a takeoff density altitude of 9,500ft. The B23 Energic performed flawlessly providing smooth, 500 feet per minute climbs using normal runway distance for departures. This 'hot and high' scenario tests an aircraft's take-off distance, climb performance, and overall efficiency. In contrast to conventional combustion engines which face degraded performance in such operating environments, the electric propulsion system of the B23 Energic delivered steady and reliable results. "Colorado offers one of the most demanding environments for aviation," said Gregory Blatt, Co- Founder and Mission Director of H55. "This stop gives us a chance to demonstrate how electric propulsion is not only sustainable, but operationally consistent in conditions previously considered restrictive for many aircraft types. We're especially grateful to Centennial Airport and jetCenters of Colorado for their warm welcome and support. Their commitment to innovation and sustainability reflects the shared mission of accelerating the adoption of clean aviation solutions." A First for Colorado Centennial Flyers, a leading flight school based at Centennial Airport (KAPA), signed a Letter of Intent (LOI) during H55's Colorado stop-over, becoming the first operator in the State to formally commit to adopting electric aviation. Their decision reflects the growing momentum across the U.S. for the Bristell B23 Energic, which continues to attract interest from flight schools, pilot individuals, operators, and regional airports seeking sustainable and cost-efficient training solutions. This engagement further strengthens H55's expanding order book and underscores the market's readiness for certified electric aircraft. Proving Electric Flight in Real Environmental Settings Electric propulsion systems face heightened scrutiny when tested outside of controlled environments. In Colorado's hot, high-altitude climate, H55's certified Electric Propulsion System (EPS) excels, maintaining optimal performance despite the challenges posed by both elevated temperatures and reduced air density. The system delivered consistent climb rates and demonstrated efficient battery cooling, proving that electric flight can operate effectively in diverse climates and geographies year-round. Key Questions Answered in Colorado Can electric aircraft operate effectively at high-density altitudes? Yes—the B23 Energic performed in conditions of 36°C (96.8°F) and a 9,500 ft density altitude with stability and strong climb rates, at 500 feet per minute. How does heat affect electric propulsion? H55's battery and EPS architecture performed within nominal thermal limits, with no signs of degradation despite high ambient temperatures, up to 40°C (104°F). Advancing Climate Resilient Flight Training As electric aircraft join training fleets, climate resilient performance is essential. The B23 Energic offers zero emissions, low noise, and minimal vibration—ideal for flight schools and airports under stricter environmental rules. Colorado illustrated flawless performance in conditions that normally strain conventional aircraft. With no performance loss or system degradation, H55's EPS proves electric propulsion is ready for high-altitude, high-temperature flight. Next Stop: Oshkosh Following the Colorado tour stop, the Across USA Tour continues with its seventh stop at EAA AirVenture Oshkosh 2025 — 'The World's Greatest Aviation Celebration'. Attendees can learn more about the future of electric aviation at the 2025 Electric Aircraft Symposium (July 19-20), followed by the annual airshow (July 21-27) — a first for both H55 and Bristell BRM AERO. A Bristell/H55 press conference will be held on Tuesday, July 22 at 11:00 AM CST at Booths 296-297. About H55 H55 is a Swiss-based company founded by the former Solar Impulse management team: André Borschberg, Sebastien Demont, and Gregory Blatt. Dedicated to revolutionizing the aviation industry, H55 provides certified electric propulsion and battery management systems tailored to a diverse range of aircraft, aiming to achieve sustainable air travel. H55 supplies certified electric propulsion systems with full airplane integration solutions for general aviation and regional transport aircraft. Through its pioneering legacy and commitment to certified solutions, H55's team of visionary engineers and aerospace experts are at the forefront of driving the aviation industry setting new standards and pushing the boundaries of electric aviation. Media Contact [email protected] H55 SA Route de l'Aéroport 10 1950 Sion Switzerland
Cision Canada
26-06-2025
- Automotive
- Cision Canada
H55 B23 ENERGIC: FIRST TWO YEARS OF PRODUCTION SOLD OUT
CALIFORNIA TOUR LOGS OVER 50 FLIGHTS—UP TO EIGHT PER DAY—AT PALO ALTO AND SAN CARLOS, ACCELERATING DEMAND FOR THE ALL-ELECTRIC TRAINER. SION, Switzerland, and PALO ALTO, Calif., June 26, 2025 /CNW/ -- H55 the Swiss electric aviation pioneer born from the Solar Impulse program, today reported that its Bristell B23 Energic completed more than 50 demonstration flights with potential buyers at Palo Alto Airport (KPAO) and turned multiple on-site visits into purchase agreements. These new commitments have already filled the production planning for the first two years. The Palo Alto campaign demonstrated two key advantages. First, the B23 Energic's negligible energy cost and minimal maintenance profile substantially reduce operating expenses for training operators. Second, pilots consistently praised the aircraft's smooth, vibration-free flight characteristics, underscoring the superior training experience delivered by electric propulsion. This immediate, first- hand validation converted casual ramp-side curiosity into signed orders, signalling that the U.S. market is ready for electric flight training today. André Borschberg, Executive Chairman & Co-Founder, H55 commenting on the company's experience in Palo Alto, "Flying Solar Impulse around the world proved that electric propulsion could conquer the skies; the B23 Energic proves it can conquer the business case. We are now at an important turning point in our growth as we start to generate product revenue on top of engineering revenue. Our battery pack qualifications will be completed this summer, full aircraft certification will follow shortly thereafter, and our order book is filling fast. Our Across America program is showing a clear message: electric aviation has moved from the future to the present tense." The B23 Energic: Transition from Visionary Concept to Everyday Commercial Reality For flight-training operators, the B23 Energic replaces fuel burn, engine overhauls and noise complaints with overnight charging, minimal scheduled maintenance and near-silent circuits. Its 80-minute endurance at the end of the life of the battery (for the 1st aircraft deliveries in the USA), combined with negligible energy draw during taxi, run-up and pattern work—delivers block times comparable to legacy piston trainers while enabling additional daily sorties at noise-sensitive airports. "The Palo Alto stopover confirmed—yet again—that flight schools and aero-clubs are no longer just curious about electric training; they are ready to buy," states Gregory Blatt, H55 Co-Founder & Mission Director. "In just a few days we logged more than 50 sorties, with 8 flights per day. We welcomed dozens of walk-up visitors and converted that interest into firm purchase agreements on the spot. Operators told us the math is undeniable: a five-dollar energy bill per flight hour, virtually no engine maintenance, and the freedom to fly extra evening circuits without disturbing the neighborhood." De-risked growth opportunity and validating H55's roadmap With its first- and second-year production slots sold out and all CAPEX already funded, H55 is primed for rapid, cost-efficient expansion. Imminent certification, a broadening customer roster, and validation from industry leaders such as Pratt & Whitney and CAE underscore the company's readiness to deliver decarbonized aviation propulsion and battery systems at scale. Next Stops on the Across America Tour The tour stops also reinforced H55's broader technology roadmap. Building on lessons learned from the Solar Impulse circumnavigation, the B23 Energic showcases a battery technology and architecture that is identical to the platform selected for RTX's 1 megawatt Dash 8 Hybrid-Electric Flight Demonstrator. The shared system proves scalability from CS-23 two-seat trainers to future CS-25 regional airliners, setting the stage for commercial electric aircraft of up to 80 seats. The B23 Energic continues its eight-state journey with public showcases in Centennial, Colorado (July 5-12), Oshkosh, Wisconsin (EAA AirVenture, July 21-27), and East Hampton, New York (August 6-10). These stops will engage aviation enthusiasts, industry leaders, and communities, furthering H55's mission to scale sustainable aviation. Details: Direct media inquiries or to schedule a visit during the tour, please contact: [email protected] About H55 H55 is a Swiss-based company founded by the former Solar Impulse management team: André Borschberg, Sebastien Demont, and Gregory Blatt. Dedicated to revolutionizing the aviation industry, H55 provides certified electric propulsion and battery management systems tailored to a diverse range of aircraft, aiming to achieve sustainable air travel. H55 supplies certified electric propulsion systems with full airplane integration solutions for general aviation and regional transport aircraft. Through its pioneering legacy and commitment to certified solutions, H55's team of visionary engineers and aerospace experts are at the forefront of driving the aviation industry setting new standards and pushing the boundaries of electric aviation. For more information, visit: or contact H55 SA Route de l'Aéroport 10 1950 Sion Switzerland Photo - Photo -
