Hovercraft made by Saunders Roe and Vickers being tested on Southampton waters.
Title reads: "Hovercraft Trials".
Various shots SRN1 (Saunders Roe N1) hovercraft drifting in water. L/S the Vickers VA3 hovercraft. M/S man throwing line from the VA3. M/S VA3 under tow. Various shots the SRN2 hovercraft. L/S the SRN1 under speed coming towards camera. M/S workmen watching. Panning shot the SRN2 at speed. C/U cameraman. Panning shot the SRN2 at speed. C/U man watching. Panning shot SRN2. Panning shot the VA3 at speed. C/U cameraman. Panning shot the VA3.