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Otto Aerospace locks FAA Part 23 certification basis for Phantom 3500 transonic laminar-flow jet

Otto Aerospace says it has finalized the FAA Part 23 certification basis for the Phantom 3500, a transonic business jet designed around laminar-flow aerodynamics. The agreement establishes the regulatory framework for the program’s remaining certification work and subsequent type-approval pathway.

Discovered 2026-06-08T12:26:39.139633-07:00 | 2026-06-08T12:26:39.139633-07:00

Briefing

What Hype is tracking

Finalizing the FAA Part 23 certification basis defines the compliance targets and testing/analysis expectations that will govern how quickly the Phantom 3500 can progress through its remaining approval steps.
For executives tracking light-jet entry and market timing, this is a concrete regulatory milestone that can materially affect resourcing, flight-test planning, and certification schedule risk (context: FAA finalizes special conditions for ZeroAvia ZA601 hydrogen-electric engine).
It also adds to the broader pattern of OEMs securing FAA-defined certification paths to improve predictability and investor confidence, similar to how the FAA cleared Boeing 777-19 to begin Phase 4A certification testing.

Reported By

businessjetinteriorsinternational.com interestingengineering.com Aviation Week avweb.com GlobalAir.com AINonline