This sub-class includes: •manufacture and/or assembly of: - airplanes for the transport of goods or passengers, for use by the defence forces, for sport or other purposes - helicopters - gliders, hang-gliders - dirigibles and/or hot air balloons - spacecraft - parts and/or accessories of the aircraft and/or spacecraft of this sub-class:  major assemblies such as fuselages, wings, doors, control surfaces, landing gear, fuel tanks, nacelles, etc.; airscrews, helicopter rotors and/or propelled rotor blades; motors and/or engines of a kind typically found on aircraft; parts of turbojets and/or turboprops for aircraft - ground flying trainers - aircraft seats - aircraft engines - civilian non-recreational unmanned aircrafts (drones) - military drones, unmanned aerial vehicles (UAVs) •overhaul and/or conversion of aircraft or aircraft engines