. Bell telephone magazine . n sous les meilleures conditions; et de trouver sa portée par opticalmethodes, la seule méthode pré-radar disponible, toujours prouvé troubleset souvent impossible. La précision des tirs anti-aériens a souffert d’un accord et il semble qu’une défense réussie contre les avions de combat hostiles exigerait des tirs de PA constants et une généreuse mesure de chance. Le radar a rendu possible l'alerte rapide de toutes les défenses. Fighterscould be brouillé, et thencoched à un contact avantageux avec le raid entrant. Les canons antiaériens pourraient être dirigés automatiquement à l'unsee
1786 x 1399 px | 30,2 x 23,7 cm | 11,9 x 9,3 inches | 150dpi
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. Bell telephone magazine . n under the best condi-tions; and to find its range by opticalmeans, the only pre-radar methodavailable, always proved troublesomeand often impossible. The accuracyof anti-aircraft fire suffered accord-ingly, and It appeared that a success-ful defense against hostile aircraft byfighters would require constant pa-trolling plus a generous measure ofplain luck. Radar made possible the timely alerting of all defenses. Fighterscould be scrambled, and thencoached to an advantageous contactwith the incoming raid. Anti-air-craft guns could be pointed automati-cally at unseen targets with greaterprecision than formerly characterizedthe sighting of visual fire. Moreover, radar could aid greatlyin increasing the impact of offensivewarfare. For example, a formeraxiom of sea warfare had it thatnaval battles were decided by the fac-tor of who happened to be up-sunfrom the enemy. With radar, ourships slugged through whole engage-ments in which the enemy was de- 1945-46 Radar: A Story in Pictures 259. ToYAMA 90 percent aflame as the Superfortresses turn homeward on the lugiit ofAugust 1, 1945: the result of pinpoint bombing by radar tected, ranged on, and sunk withouta single man having seen him visually. Before the days of radar, eitherbase weather or target weathercould bog down strategic bombingforces. By the wars end, airmen re-turning to fog-locked bases weretalked down by means of two-wayradio telephone from accurate datasupplied by land-based radars. Notonly could radar-equipped planes navi-gate unerringly to the target area;they could line up on the target andbomb blind. As the war drew to a close, specu-lation arose as to the peaceful usesof radar. It is perhaps fair to say that radar, as radar, will have an im-mediate and beneficial effect by addingto the safety of air and sea travel.But the impact on electronics of tech-niques developed during the war maywell outdistance such applications byinfluencing developmental trends ininnumerable articl
