LZ 4

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Zeppelin LZ 4
Role	Experimental airship Type of aircraft
National origin	Germany
Designer	Ludwig Dürr
First flight	20 June 1908
Status	Destroyed in crash
Number built	1

The Zeppelin LZ 4 was a German experimental airship constructed under the direction of Ferdinand von Zeppelin. First flown on 20 June 1908, it made a series of successful flights including a 12-hour flight over Switzerland. It was destroyed when it caught fire after landing to carry out engine repairs during a projected 24-hour endurance trial.^[1] This disaster proved fortunate for Zeppelin: donations by the German public raised 6.5 million marks, so guaranteeing the future of his development of airships.