Something new:
Germany, Zeppelin LZ-4 as launched (20 June 1908)
Germany, Zeppelin LZ-4 modified for 2nd flight (23 June 1908)
Germany, Zeppelin LZ-4 final modifications (29 June 1908)
Von Zeppelin continued development of his ridged airships despite the failures of LZ-2 and 3, and near financial collapse. LZ-4 fared somewhat better although it too was ultimately destroyed. On it's first flight it was found to be dangerously lacking in steering control (see version 4.1). Within a couple days rudders were added to the aft horizontal fins (see version 4.2). Still lacking enough control the ship was further modified with an additional large rudder. In July 1, 1908 LZ-4 embarked on a 12 hour flight during which it was flown over Switzerland to Zürich and then back to Lake Constance, covering 386 km (240 mi) and reaching an altitude of 795 m (2,600 ft).
At this point the ship was entered for military trials on August 4. The earlier flight had generated enormous public interest. Part way through the 24 hour test engine troubles developed that ultimately force a landing for repairs. In front of 40-50 thousand onlookers the ship broke loose from it's ground crew, blew into some trees, ruptured and immediately was consumed by flames as a static charge ignited the hydrogen. Despite the disaster Von Z had won enormous national support. Donations rolled in and he was back in business for his next ship.
CraigH