What is purpose of engine pylon airfoils on the Hondajet HA-420? The engine pylons on the Hondajet are aerodynamically shaped so as to provide a lift force laterally and outwardly.


Engine pylon as viewed from rear


Engine pylon as viewed from front

Are these for lateral stability or drag reduction or both or other purposes?
There is a pretty interesting write up on the pylon design here. According to that the shape was chosen for a number of reasons including flutter reduction, stall characteristics and wave drag reduction. There is also some more info here that briefly touches on the design.