Otto Aerospace has completed the preliminary design review for its Phantom 3500 super-midsize business jet, a key step in the aircrafts development timeline. The review, originally targeted for October 2025, confirms the design viability following extensive wind tunnel testing, including trials at NASAs Ames Research Center and the European Transonic Windtunnel.
The Phantom 3500 features a windowless fuselage to reduce drag by 35 percent and fuel consumption by more than 60 percent compared to typical jets in its class. High-definition digital screens simulate external views, while the aircraft achieves laminar flow over nearly 90 percent of its 23-degree swept wing equipped with leading-edge slots. Powered by twin turbofan engines, it offers a range exceeding 3,500 nautical miles, a cruise speed of 590 mph, and operations up to 51,000 feet.
Constructed with an all-composite airframe using resin transfer molding at a facility in Jacksonville, Florida, the jet targets FAA Part 23 certification as a single-pilot aircraft. First flight is scheduled for early 2027, with entry into service projected for 2030. The design also supports short balanced field lengths under 3,500 feet and emissions reductions of over 90 percent when using sustainable aviation fuel.
Building on technology from Otto Aviations prior Celera 500 demonstrator, the Phantom 3500 has secured a launch order from Flexjet for 300 units.