swivelling four-bladed propellers. From the keel was suspended a
torpedo-shaped boat car in which a crew of two was accommodated.
Originally a vertical fin and rudder were mounted at the stern
end of the keel, but these were later replaced by fins on the
stern of the envelope.

This ship was purchased by the naval authorities, and after
purchase was more or less reconstructed, but carried out little
flying. At the outbreak of war she was lying deflated in the shed
at Farnborough. As will be seen later, this was the envelope
which was rigged to the original experimental S.S. airship in
the early days of 1915, and is for this reason, if for no other,
particularly interesting.


WILLOWS No. 5

This ship was of similar design, but of greater capacity. The
envelope, which was composed of rubber-proofed fabric, gave a
volume of 50,000 cubic feet, and contained two ballonets. A 60
horsepower engine drove two swivelling propellers at an estimated
speed of 38 miles per hour. She was constructed at Hendon, from
where she made several short trips.


MARSHALL FOX'S AIRSHIP

In the early days of the war an airship was constructed by Mr.
Marshall Fox which is worthy of mention, although it never flew.
It was claimed that this ship was a rigid airship, although from