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Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 OBS

The Kerrison Predictor was one of the first fully automated anti-aircraft fire-control systems. The Predictor solved the problem by doing all of the calculations mechanically through a complex system of gears. Inputs to its calculations included wind speed, ballistics of the gun and the rounds it fired, angle to the target in azimuth and altitude, and a user-input estimated target speed. Some of these inputs were fed in by dials, which turned gearing inside the Predictor to calculate the range (from the change in angle and estimated speed) and direction of motion.  1, fiche 1, Anglais, - Kerrison%20Predictor

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

Ordinateur analogique créé à la fin des années 1930 [...] pour guider les tirs d'un canon antiaérien.  3, fiche 1, Français, - Kerrison%20Predictor

Fiche 1,  Justifications,  Espagnol