message received in this country testified to the valiant manner
in which one of these ships met with destruction.



THE "NORTH SEA" AIRSHIP

The North Sea or N.S. airship was originally designed to act as a
substitute for the Rigid, which, in 1916, was still a long way
from being available for work of practical utility. From
experience gained at this time with airships of the Coastal type
it was thought possible to construct a large Non-Rigid capable of
carrying out flights of twenty-four hours' duration, with a speed
of 55 to 60 knots, with sufficient accommodation for a double
crew.

The main requirements fall under four headings:

1. Capability to carry out flights of considerable duration.

2. Great reliability.

3. The necessary lift to carry an ample supply of fuel.

4. Adequate arrangements to accommodate the crew in comfort.


If these could be fulfilled the authorities were satisfied that
ships possessing these qualifications would be of value to the
Fleet and would prove efficient substitutes until rigid airships