The Celera 500L, an unusual blimp-like aircraft by Otto Aviation, has debuted with ambitious claims for high speed (400 knots), altitude (65,000 ft), range, and exceptional fuel efficiency (25 mpg), ...

Is it an egg, a blimp or a bullet? Whatever you might want to call the shape of the Otto Celera 500L, it’s one that catches the eye. It looks like no other plane out there, and for a good reason: ...

The latest series of flights focused on confirming the extent of laminar flow over the Celera’s wing and fuselage. Credit: Otto Aircraft Otto Aviation has completed the first phase of testing of its ...

Otto Aviation has confirmed plans for a 19-seat, hydrogen-powered version of its Celera aircraft that could be operated on flights of up to 1,000 nm. Otto Aviation has confirmed plans for a 19-seat, ...