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Radar System Engineering

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200 THE GATHERING AND PRESENTATION OF RADAR DATA [SEC.6.13<br />

made for expansion of the sector dead ahead when homing is being carried<br />

out. In these sets, the general mapping functions of microwave radar<br />

have been sacrificed in favor of the utmost simplicity and ease in carrying<br />

out the homing function.<br />

FIG. 6.31.—Scannerhousingof AN/APS-6 in wing of F6F. The installationof AN/APS-3<br />

iu single-enginecarrier-basedtor~edo bombersis identical in external appearance.<br />

FIQ. 6.32.—Unitsof AN/APS4. Covers, radome, and fairing of main unit are removed.<br />

In use,main unit is suspendedfrom bracket shown at bottom in this view.<br />

Homing on Aircraft .—During the war, defensive night fighters<br />

equipped with radar were developed as a reply to night bombing attacks.<br />

The homing problem faced by the Aircraft Interception, .41, radar used<br />

for this purpose is more difficult than that presented in the sea-search

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