> it requires surprising effort to ignite the hydrogen in an airship They burned like tinder, in large numbers. The following is a list of hydrogen-filled airs

> it requires surprising effort to ignite the hydrogen in an airship They burned like tinder, in large numbers. The following is a list of hydrogen-filled airships which burned. These exclude losses due to enemy action. 1902, *Pax* explodes over Paris 1908, Zeppelin LZ-4 caught fire while moored 1912, *Akron* explodes off Atlantic City 1913, Zeppelin LZ-18 caught fire during test flight 1915, Zeppelin L-4 burned when struck by lightning 1915, SL-6 explodes after takeoff 1915, Zeppelin L-18 burned in hangar 1916, Zeppelin L-6 burned when being inflated 1918, 4 Zeppelins and one other burned in mass hangar fire 1918, Zeppelin L-59 explodes during flight 1919, US Navy blimp C-8 explodes while landing 1919, British blimp N.S.11 burned in flight 1919, US blimp *Wingfoot Express* burned over Chicago 1920, US Navy blimp D-1 burned at base 1921, US Navy blimp C-3 burned at Hampton Roads, VA 1921, British rigid airship R.38 broke in half and burned in mid-air 1921, US Navy blimps D-6 and C-10 burned in hangar fire 1922, US Army *Roma* struck power lines and burned 1922, US Army blimp C-2 burned while exiting hangar 1923, French Navy *Dixmude* struck by lightning and burned in flight 1930, British rigid airship R.101 struck hillside during storm and burned 1934 Soviet blimps V4, V5, and V7 all burned in a hangar fire 1935, Soviet blimp V7-bis struck a powerline and burned 1937, Zeppelin *Hindenburg* caught fire due to unknown cause and burned [0] https://en.wikipedia.org/wiki/List_of_airship_accidents [1] http://www.zeppelinhistory.com/zeppelin-facts/airship-accidents/