Douglas Dakota DC-3 (G-ANAF) of the Air Atlantique Historic Flight at Hullavington Airfield, Wiltshire, England, taking off. The aircraft is operated by Air Atlantique on behalf of Thales Group for development of the Nimrod radar. The radome under the cockpit contains a rotating parabolic antenna. A new pitot tube was fitted to the nose (the original tube under the nose would interfere with the radar). The APU behind the starboard wing provides electrical power for the radar systems. Note the added vertical stabiliser behind the tail wheel. The aircraft was built in 1944 and apparently operated as part of the Berlin airlift.