Jet engines being tested at National Gas Turbine Est. + Rolls Royce jet engine workshops.
Title reads: "12,000 Horsepower".
National Gas Turbine Establishment, Pyestock, Hampshire.
Various shots of men working on jet outlet in bench test room. M/S of men adjusting machinery. M/S of man adjusting fuel taps. M/S of man tightening brace. Various shots of men reading dials and instruments. C/U of man with earplugs. He nods, another man turns wheel of valve. Instrument dial. C/U of man turning small valve wheel. C/U of main outlet of jet engine in action. C/U man looking at jet with aid of welding mask. Panning shot of jet engine.
Rolls Royce workshops, Derby, Derbyshire.
Panning of men working in mechanic shop. A milling machine in operation. C/U of machine operator. Various C/Us machines and operators. Various shots of machines. We see the engines being assembled. C/U of engines. Shot of jet plane flying low over sea (belongs to Rolls Royce.).