Experience: You qualify for the GS-11 grade level if you possess one (1) year of specialized professional aviation experience performing duties such as: Flying as a Pilot-in-Command or sole manipulator in an airplane and helicopter in all environments of flight, including night, poor weather, unfavorable terrain, low altitudes, or speed. Certification & Ratings: A current FAA Commercial or ATP Pilot Certification with one of the following ratings: Dual Rated: Airplane (Single-engine land or multi-engine land) with instrument rating AND Rotorcraft Helicopter with instrument rating.