Ключевые слова: aerial warfare, aeronautics, aeroplane, aerospace, air combat, air force, aircraft, airplane, armed forces, aviation, combat aircraft, defence, defense, fighter aircraft, first world war, flight, fly, flying, formation, formation flying, historic, military, military aviation, old, plane, propeller, pup, retro, sopwith, sopwith aircraft, sopwith pup, vintage, warbird, warbirds, warplane, weapon, ww1, wwi,