The 10 kg bomb is typical of the small bombs used during the First World War. Bombs dropped from aircraft were first employed in the Italo-Turkish War of 1911 and the First Balkan War of 1912, but aerial bombardment did not become commonplace until World War I. Initially bombs were improvised from hand grenades or converted artillery shells and dropped out of an aircraft by hand onto enemy positions. By the end of the war, bomb racks under the wings and fuselage, and even early bomb sights were developed.