Otto’s windowless Phantom 3500 business jet passes major design review stage

Otto Aerospace completed the preliminary design review for its windowless Phantom 3500 business jet.

The next phase will focus on detailed engineering, production planning, and flight tests.

The company is targeting first flight in 2027 for the transonic laminar-flow aircraft.

The milestone is an important step in testing whether the design can deliver major efficiency gains for business and defense aviation.