Otto Aerospace Sets Certification Basis For Phantom 3500

Company says first flight remains planned for 2027.

Otto Aerospace Sets FAA Certification Basis For Phantom 3500
[Credit: Otto Aerospace]
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Key Takeaways:

  • Otto Aerospace has established the Part 23 certification basis for its Phantom 3500 business jet by closing the FAA’s G-1 Issue Paper.
  • This milestone provides clarity and momentum for the program, which is now working on defining the means of compliance and has begun advanced material testing.
  • The company is targeting the Phantom 3500's first flight in 2027 and entry into service by 2030.
  • Flexjet has placed a firm order for 300 of the Phantom 3500 aircraft.
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Otto Aerospace said Monday it has closed the FAA’s G-1 Issue Paper for its Phantom 3500 business jet, establishing the certification basis for the aircraft under Part 23. The Fort Worth, Texas-based company applied for type certification in September 2025 and is pursuing certification under Amendment 23-64, according to Otto.

“This is a huge moment for the entire Otto Team and a really exciting milestone for the Phantom 3500,” Otto Aerospace President and CEO Scott Drennan said. “Now that the certification basis is in place, the program moves into a higher gear on execution. We have alignment with the FAA on what we need to demonstrate, and that gives us real momentum as we move toward first flight and entry into service.”

Otto said it is also working with the FAA East Certification Branch on the G-2 Issue Paper, which will define the means of compliance for the Phantom 3500 program. The company recently completed preliminary design review and has begun advanced material testing.

Otto says flight testing is planned at Cecil Airport in Jacksonville, Florida, and that the company is targeting a first flight in 2027 and entry into service in 2030.

The program has a firm order from Flexjet for 300 aircraft.

Matt Ryan

Matt is AVweb's lead editor. His eyes have been turned to the sky for as long as he can remember. Now a fixed-wing pilot, instructor and aviation writer, Matt also leads and teaches a high school aviation program in the Dallas area. Beyond his lifelong obsession with aviation, Matt loves to travel and has lived in Greece, Czechia and Germany for studies and for work.

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Replies: 1

  1. We’re used to startup companies making exaggerated claims, but Otto has taken this to a new level.
    Six years ago, they announced that the Otto Celera would outfly a TBM with a 300 horsepower engine and a fuselage that looks like a butternut squash.
    The same people now have a prettier fuselage, and more fantastic claims.
    Be governed accordingly.

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