nd tunnel on earth were
completed, along with a low pressure chamber for testing motors, a new
development as unique as it was important to the automotive science.

The Hydrogen Plant

The original hydrogen plant was enlarged to a capacity output of 353,100
cubic feet (10,000 cubic meters) daily, with storage facilities for
2,118,600 cubic feet (60,000 cubic meters). Since the war, the storage
facilities have been reduced to 706,200 cubic feet (20,000 cubic meters)
by order of the Allied Commission.

Powerful Radio Station

The Zeppelin wireless plant, started in 1910, has continued to develop
with the science of radio and is now able to communicate with the United
States.

The duralumin factory is capable of meeting all Zeppelin requirements.

The Great Zeppelin Hangars

The original shed, built in 1908-09 and first used in 1910, is now the
ring building factory, where the great transverse frames for the
Zeppelins are made. It is 603-1/2 feet (184 meters) long, 150.8 feet (46
meters) wide and stands 65.6 feet (20 meters) high--huge dimensions in
the early days but utterly dwarfed by the great sheds which have since
appeared alongside. There are double doors at each end, one set operated
on the turning, the other on the sliding principle. They are opened and
closed by electricity in a few minutes.

In this shed twenty-eight Zeppelins were assembled, the last being LZ-39
after which it was devoted to the transverse ring frames.

[PLATE 31: The "DELAG" Passenger Zeppelin "Victoria Louise",
1912.

The "DELAG" Passenger Zeppelin "Victoria Louise", 1912.]

Twenty Zeppelins were built in the new shed, number one (Plate 16),
which is 629.8 feet (192 meters) long, 129.23 feet (39.4 meters) wide
and 91.8 feet (28 meters) high. Its double sliding doors are
electrically operated.

Six of the larger Zeppelins were either built or reconstructed in
another new shed, number two, erected to accommodate ships of 1,942,050
cubic feet (55,000 cubic meters) and more. It is 787.2 feet (240 meters)
long, 150.8 feet (46 meters) wide and 114.8 feet (35 meters) high. Its
sliding doors can be opened or closed within fifteen minutes. Both of
the large sheds have long docking rails at each end which enables the
Zeppelins to leave or return to shelter within a few minutes.

Another shed near the works at Loewental was turned over to Zeppelin by
the Government. The Navy Zeppelin L-11 was built there in 1915. The las