Research and testing of ship equipment is carried out at the National Physical Laboratory.
At the Ship Division of the National Physical Laboratory we see various tests being made on boat equipment. The effects of turbulence on a propellor screw are checked in a water tunnel; a wax model of the hull of a ship is worked on; a waxen hull is etched with lines along the side, then men scrape the wax into shape.
A radio-controlled model ship is put through manoeuvres in a large water tank with a wave-making machine; a model tanker is measured and tested in a circulation water channel for the effects of friction over the hull. Several shots show scientists on a mobile laboratory moving over the water in a huge tank and checking graphs and readings on machines as they go.
Good illustration of industrial research laboratories.