Zeppelin LZ 130 Graf Zeppelin II

LZ 130 Graf Zeppelin was the last of the German rigid airships built by Zeppelin Luftschiffbau during the period between the World Wars, the second and final ship of the Hindenburg class, and the second zeppelin to carry the name "Graf Zeppelin" and thus often referred to as Graf Zeppelin II. Due to the United States' refusal to export helium to Germany, the Graf Zeppelin II was inflated with hydrogen and therefore never carried commercial passengers. It made 30 flights over 11 months in 1938–39, many being propaganda publicity flights; staff of the Reich Air Ministry were aboard to conduct radio surveillance and measurements. The airship, along with LZ 127 were both scrapped in April 1940, and their duralumin framework salvaged to build aircraft for the Luftwaffe.