Flying Wing Headquarters - Mar54.   This was taken before the control tower was built.   Notice that there are two semi-circular extensions on the ground floor front of the building.   The one near the centre was where the observers from the Met Office could look at the weather and the one on the right was the office of Wing Commander Flying (Wg Cdr West).   The extension to the Met Office was extended upwards to the first floor after this to form a room where the local airfield controller supervised take-offs and landings.   See the next picture, believed to have been taken in NOv54 when the Wing was detached to Wunstorf while the runway was extended.   The changes to the Flying Wing HQ visible in that picture were made at the same time.   (Thanks to Dick Endecott)