Shots of the Perth, the RAF's new huge flying boat - with its impressive big gun.
Full title reads: "Brough. New 'Battleship of the Air'! Latest and largest RAF boat, the Blackburn Rolls Royce-engined 'Perth' first of four to be completed, carrying quickfiring 1.5" gun, named and launched."
Brough, near Hull, Humberside.
A bottle of champagne is smashed against the nose of a large flying boat. Various shots of the plane. The three Rolls Royce engines are seen turning over. The flying boat is seen moving off. Various shots of the Vickers-Armstrong quick firing machine gun mounted in the nose of the plane. The forward gunner takes up a firing position. A round is fired from the gun.
N.B. R.A.F. stands for Royal Air Force.