The plane's unusual teardrop shape allows for a 6 foot 2 inches tall (188 cm) cabin that will seat six people, but the main advantage of the shape is the laminar flow it creates. Laminar flow is smooth-flowing air that is unaffected by turbulence. Air flowing around typical aircraft becomes turbulent because of friction between it and the aircraft's surfaces. This turbulence increases drag and reduces fuel efficiency.
According to Otto Aviation, the laminar flow around the Celera is "the minimum drag solution for aircraft surfaces, and features smooth layers of airflow with little-to-no mixing of adjacent layers." The company states that the Celera’s drag is 59% less than that of "similar-sized conventional aircraft."To read more, click here.