The aviation industry is well aware of its carbon footprint, but it's not an industry where things change quickly. The company, which is part of our Battlefield startup competition at Disrupt this week, is currently ground-testing an 85 kW hydrogen-based propulsion system, with flight tests of its single-engine test bed scheduled for later this year. The company plans to launch with a business jet, the Beyond Aero One, with a range of up to 800 nautical miles, a speed of about 310 knots (or just over 356 miles per hour) and seating for up to eight passengers.