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Otto Phantom 3500 Advances with FAA Part 23 Certification Basis

June 8, 2026

2 min read

Key Takeaways

Otto Aerospace finalized the G-1 Issue Paper for Phantom 3500 certification.
The aircraft will be certified under 14 CFR Part 23.
Otto chose Part 23 for certification efficiencies.
First flight is planned for 2027, entry into service for 2030.

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Strategic Implications

This milestone may indicate Otto's progress in bringing a revolutionary, fuel-efficient business jet to market, which could disrupt the industry's traditional players. The use of Part 23 certification suggests a focus on cost and time efficiency, which could benefit Otto in its competitive positioning against established manufacturers.

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What Happened

Clean-Sheet Business Jet Program Reaches Regulatory Milestone

Otto Aerospace has achieved a significant regulatory milestone for its Phantom 3500 business jet program, finalizing the G-1 Issue Paper with the Federal Aviation Administration (FAA). This establishes the certification basis for the clean-sheet aircraft under 14 CFR Part 23, paving the way for type certification. The Phantom 3500 is designed as a transonic laminar-flow business jet with a unique windowless cabin architecture, aiming to reduce drag and energy use. With a firm order from Flexjet for 300 aircraft, valued at over $5 billion, Otto is working towards first flight in 2027 and entry into service in 2030. The development was first reported by AeroTime.

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