evolved from the two-seater previously referred to, fitted with a
Gnome engine of 80 horse-power, had the, for those days,
remarkable speed of 92 miles an hour; while a still more
notable feature was that it could remain in level flight at not
more than 37 miles per hour. This machine is of particular
importance because it was the prototype and forerunner of the
successive designs of single-seater scout fighting machines
which were used so extensively from 1914 to 1918. It was also
probably the first machine to be capable of reaching a height of
1,000 feet within one minute. It was closely followed by the
'Bristol Bullet,' which was exhibited at the Olympia Aero Show
of March, 1914. This last pre-war show was mainly remarkable
for the good workmanship displayed--rather than for any distinct
advance in design. In fact, there was a notable diversity in
the types displayed, but in detailed design considerable
improvements were to be seen, such as the general adoption of
stranded steel cable in place of piano wire for the mail bracing



IV. THE WAR PERIOD

Up to this point an attempt has been made to give some idea of
the progress that was made during the eleven years that had
elapsed since the days of the Wrights' first flights. Much
advance had been made and aeroplanes had settled down,
superficially at any rate, into more or less standardised forms
in three main types--tractor monoplanes, tractor biplanes, and
pusher biplanes. Through the application of the results of
experiments with models in wind tunnels to full-scale machines,