WWI Weapons By sophie.dore Aug 22, 1914 British start to use machine guns Aug 22, 1914 Germans use traditional bayonets Aug 23, 1914 British find a use for grenades Sep 3, 1914 Germany use torpedoes in navy Oct 1, 1914 Brits & German use flamethrowers Nov 15, 1914 French army first use aircrafts Apr 18, 1915 French add machine guns to planes Apr 22, 1915 Germans attack using chlorine gas Sep 6, 1916 British first use of tanks in battle 1917 Germans load bombs onto planes