COMPLETE SUCCESS.

Otago Witness, Issue 3764, 4 May 1926, Page 29

COMPLETE SUCCESS.

BRITISH COURT ELECTRICAL WORKr Complete satisfaction in the results of the British Court electrical work was expressed on the 26th by the See retar y-gen era 1 of the Commission, Captain K. E. J. Moore. “The members of the Commission consider themselves lucky in finding such a capable staff of electricians headed by Mr W. J. Masked,” he said. “The installation required men of mechanical as well a® electrical knowledge, and we have carried through the Exhibition with only one breakdown. That was in the postergraph of the

moving map of the world, which was out of adjustment for a few hours.” Few departments of the Exhibition contain more intricate electrical devices than the British Court, besides which the lighting was difficult to carry out satisfactorily. The moving map of the world is perhaps the most delicately adjusted mechanism in the Exhibition. Not only has the greatest care to be taken with the movement of the little model ships that ply to and fro on the map, but the lighting of the various countries in the Empire has to synchronise exactly with the story told by the postergraph. A similar device and map at Wembley was hailed as a mechanical triumpK and the map in the British Court at Logan Park has been no less successful. Another intricate device in the court is the working model of the aeroplane cockpit that shows the movements of the rudders and “joystick” in a fully-equipped aero plane, while the results of each move are demonstrated by a tiny aeroplane that hangs above the cockpit. While the movements are being demonstrated they are described by two sets of printed cards which are mechanically brought into the view of the onlooker. One gives the technical names of the movements while the ..other describes the results. Electrically-operated fans and other synchronised mechanism demonstrates the ‘‘reason why an aeroplane flies” in cunning fashion, the effect of wind pressure on the wings being shown by a working model, together with a series of pressure guages. Lastly, there is the lighting. Apart from the regular lighting fixtures in the halls and wings, there is the brilliant illumination of the naval pageant —the model vessels showing the evolution of British men-of-war from the semi-savage war canoe to to the molcrn super-dreadnought. Nowhere in the Exhibition has more br.lliant lighting been used, or with such striking effect. In the army section the p.uioramas of famous British battles required careful treatment to produce the correct effects, while in the aeroplane wing special lighting lias been introduced into the models.