Hurricane aeroplanes having their propellers tested.
Part of issue ACCOUNT RENDERED.
Location of events unknown.
At unidentified RAF (Royal Air Force) base. Various shots of aeroplanes taking off - they look like Hurricanes. Good shots of planes in fight, swooping and rolling through clouds. Inside the cockpits, the pilots are taking notes from instruments. The planes are having their propellers tested.
C/U of pilot and flight mechanic standing in front of grounded plane. The pilot points out to mechanic some defects and damage to the props. Various shots, inside aircraft hangar, of mechanics replacing damaged prop with a new one.