1910, and the following ship was burnt at Baden in the same year.

The seventh ship was the first passenger airship of the series,
and was known as the Deutschland. By this time the capacity had
increased to 536,000 cubic feet, and she was propelled by three
120 horse-power engines. She also fell a victim to the wind, and
was wrecked in the Teutoberg Forest in 1910; and yet another was
destroyed in the following year at Dusseldorf.

The tenth ship to be completed was the passenger ship Schwaben;
her capacity was 636,500 cubic feet, and she had three 150
horse-power engines. This ship carried out her first flight in
June, 1911, and was followed four months later by the Victoria
Luise. The fourth passenger airship was known as the Hansa.
These three ships were all in commission at the outbreak of war.

The first naval airship, L 1, mentioned above, was larger than
any of these. The total length was 525 feet, diameter 50 feet,
and cubic contents 776,000 cubic feet. Her hull framework in
section formed a regular polygon of seventeen sides, and was
built up of triangular aluminium girders. The gasbags were
eighteen in number. This ship was fitted with three 170
horse-power Maybach engines, which were disposed as follows--one
in the forward car, driving two two-bladed propellers; two in the
after car, each driving a single four-bladed propeller. For
steering purposes she had six vertical and eight horizontal
planes. The total lift was 27 tons, with a disposable lift of 7
tons. Her speed was about 50 miles per hour, and she could carry
fuel for about 48 hours. Her normal crew consisted of fourteen
persons, including officers.