The plain extending from Zenson to the sea does not offer any elevated
points for observation and the control of artillery fire. Therefore, the
task of directing the shellfire had to be confided to the airplanes, and
in the lagoons to the seaplanes. But in order that the seaplanes may
fulfill their work of observation with safety they must be defended from
enemy airplanes and must, therefore, be escorted by chasing machines.
The Italian seaplanes and their escorts did not spare themselves. The
aviators of one squadron accomplished seventy-nine bombarding and
observation flights in the first twenty days of November during a total
of ninety-two hours of flight--not counting practice flights.