<i>Royal Air Force Operations in the Middle East and North Africa, 1939-1943.</i><br>
Vickers Wellingtons of No. 38 Squadron RAF (Mark XIII, MP707 'E', nearest) lined up at Berka III, Libya, as another aircraft of the Squadron makes a low pass over them.  All are equipped with ASV Mark II anti-submarine radar. The transmitter antenna is just visible under the nose of MP707, as well as one of the two directional receiver antennas extended forward under the closer wing. The receivers are also visible on the aircraft making the flypast. The vertical antennas on the back of MP707 were also part of the radar system, allowing it to scan to the sides of the aircraft. In typical use the vertical antennas would be used while the aircraft searched for targets, and when one was found its approximate bearing was determined and the aircraft maundered to approach it head-on. During this pass the forward-looking antennas would be used, providing a much more accurate directional signal.
Royal Air Force official photographer
between 1939 and 1945 <div style="display: none;">date QS:P,+1950-00-00T00:00:00Z/7,P1319,+1939-00-00T00:00:00Z/9,P1326,+1945-00-00T00:00:00Z/9</div>
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<td>This photograph <a rel="nofollow" class="external text" href="https://www.iwm.org.uk/collections/item/object/205210708">CH 15215</a> comes from the collections of the <a rel="nofollow" class="external text" href="https://www.iwm.org.uk/">Imperial War Museums</a>.
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