The wings of a plane generate lift―the force necessary to propel the aircraft upwards into the sky. But what other function do a plane's wings serve?
The answer is: holding the fuel tank
Wings are generally positioned near a plane's center of gravity. The interior of an aircraft's wings is ideal for storing fuel tanks as there is sufficient space and their positioning means that the expenditure of fuel has minimal impact on the plane's center of gravity.
The weight of fuel loaded into the wings increases the downward force on the wing. This downward force helps ease the upward load on the wing base when lift is generated during flight. Accordingly, wing fuel tanks play a part in reducing stress on the wing root.
The HondaJet features natural laminar flow wings developed independently by Honda. Naturally, the aircraft's fuel tanks are located inside these wings. The HondaJet's natural laminar flow wings not only increase flight speed and contribute to greater fuel efficiency, but also have a higher wing thickness ratio* than other models of the same class, allowing a larger volume of fuel to be carried.