Selection of WW1 Heavy Bombers from all Nations World War I Heavy Bombers The first heavy bomber was designed as an airliner. The Russian aircraft designer, Igor Sikorsky designed the Sikorsky Ilya Muromets to fly between his birthplace 9poland) and his new home (St Petersburg). It did so briefly until August 1914, when the Russo-Balt wagon factory converted to a bomber version, with British Sunbeam Crusader V8 engines. By December 1914 a squadron of 10 was bombing German positions on the Eastern Front and by summer 1916 there were twenty.…