Summary:Demonstration and trials of the "Tse-Tse" installation in a Mosquito.
Description:The aircraft with cannon (a 57cm Molins Mk IV) is shown. A close-up shows the mechanism of the gun (removed from the aircraft). The rounds are loaded in and the aircraft taxies out for take-off. The aircraft is shown (air to air) firing into the sea with brief shots of the feed mechanism operating.