12 Vehicles for locomotion by air; air vehicles; airships; dirigible balloons; military aircraft; pilotless aircraft; aircraft parts included in this class, namely brake discs, brake linings and related mechanical parts therefor; structural parts and fittings for all the aforesaid goods, namely, nacelles comprised of an inlet cowl, fan cowls, pylon/strut, exhaust nozzle, and exhaust cone; none of the aforesaid relating to vehicle wheel tires, vehicle wheel tubes, vehicle wheel rims, vehicle wheels, or roof racks