Otto Aerospace clears first FAA certification hurdle for the Phantom 3500

The Phantom 3500 is one step closer to service as Otto Aerospace announced on June 8th that its flagship Phantom 3500 program reached a major regulatory milestone. With the Phantom 3500 approaching full certification and entering service, owners, operators and sellers should be aware of how the jet and its features will affect the market.
What the G-1 Milestone Actually Means
The milestone is the closure of the G-1 Issue Paper, which establishes the aircraft’s Certification Basis with the Federal Aviation Administration under 14 CFR Part 23 and the regulatory framework for type certification. Otto states that it strategically chose to use Part 23 certification to take advantage of certification efficiencies introduced under Amendment 23-64.
Otto already announced in May that it had completed the Preliminary Design Review for the jet and is currently engaged with the FAA East Certification Branch to close the G-2 Issue Paper to define the program’s means of compliance.
What Sets the Phantom 3500 Apart from Anything Flying Today
Otto’s secret sauce is the utilization of the company’s laminar flow technology, which is designed to dramatically reduce aerodynamic drag. Those benefits should help increase range and reduce turbulence felt in the cabin. The Phantom 3500 will likely be one of the most aerodynamically efficient business jets ever created.
The most notable feature of the jet is the lack of windows. Instead, the aircraft uses panoramic digital displays that the company calls Super Natural Vision. Otto Aerospace claims that having no windows gives the jet enhanced aerodynamics and efficiency, while passengers will get to enjoy uninterrupted views of the sky through these displays.
The Phantom 3500’s cabin volume is over 800 sq ft, which is larger than that of typical light jets. The cabin height is over 6.4 ft and has a width of 7.5 ft, which Otto states is larger than the average super-midsize jet. The aircraft has a maximum takeoff weight of 19,000 pounds and a range of 3,500 nautical miles while reducing emissions through the use of 100% SAF. The integrated fuel system will be designed with aerodynamic efficiency and structural integration goals in mind. Features of the system will include:
Precision integration to ensure aerodynamic preservation and structural balance
Advanced Automation with smart sensors, real-time fuel monitoring and automated flow control
Lightweight and maintainable design with high reliability and ease of service
The Path to First Flight
The company has already begun advanced material testing for the Phantom 3500 and plans to have its first flight in 2027. Flight testing will be done at the Cecil Airport (VQQ) in Jacksonville, Florida. The jet is scheduled to enter service in 2030 and is anchored by a firm order from Flexjet for 300 aircraft, which is valued at over $5 billion.
What This Means for Large-Cabin Buyers and Sellers
For buyers evaluating large-cabin options today, the Phantom 3500 is still four years out, but the Flexjet order signals serious institutional confidence in the program. When it does enter service, the aircraft will compete directly with established super-midsize and large-cabin models. Whether laminar-flow efficiency and a windowless cabin justify the trade-off over proven platforms will depend on your mission profile and risk tolerance for first-generation technology. For sellers and brokers, the more immediate consequence is fleet turnover: Flexjet’s 300-aircraft commitment alone should push older large-cabin models into the used market, increasing inventory and softening values in that segment. That shift is years away, but operators holding long-range jets into the 2030s may want to keep the Phantom 3500 on their radar. RELATED STORIES:Otto Aerospace unmanned drone completes flight test with Swift EngineeringOtto Aerospace completes Preliminary Design Review for Phantom 3500 programOtto Aerospace partners with F/LIST to design Phantom 3500 interior