12 Aircraft; aircraft equipment in the nature of equipment for fighting fires from the air, namely, firefighting bucket, firefighting tank, proscribed burning equipment being equipment to ignite and fuel a proscribed burn, water dispenser and fire retardant dispenser; aircraft equipment in the nature of equipment for applying fertilizer, herbicide, fungicide and/or pesticide, namely, sprayers, seed distributors, and spreaders; aircraft equipment in the nature of equipment for cleaning power generation equipment and structures, windmills, power storage equipment and structures and power transmission equipment and structures, namely, sprayers; aircraft equipment in the nature of equipment for cleaning ice and snow from power generation equipment and structures, windmills, power storage equipment and structures and power transmission equipment and structures, namely, sprayers; aircraft equipment in the nature of equipment for applying pest-control materials and insect-control materials, namely, sprayers, seed distributors, and spreaders; Aircraft parts for remote piloted aircraft, namely, rotor systems, jet engine, cooling system, fuel system, landing gear, fuselage and cargo hook system, radios, automatic dependent surveillance system, autopilot system, ground control system, antennas, mission computer, sensors to detect aircraft traffic, sensors to detect clear landing zone, and other mission components, and other mission components in particular brake discs, brake linings and related mechanical parts therefor; aircraft components, namely, rotor systems, fuel systems and cooling systems