Information film, describing the Airfield Control Radar 7D (ACR 7D) equipment and covers the main aspects of installation, calibration, servicing, setting up and operation of the system. The film is intended to be used in the training of personnel serving in training establishments and at Commands and stations where the system is in use.
Reel 1: "A description of the Airfield Control Radar 7D." "A.C.R. 7D is used primarily when is lending conditions are such that going to bad visibility or shortage a few extra facilities are required beyond those offered by normal homing aids. For obvious reasons the exterior scenes in this film were photographed in fair weather conditions. This film has been produced for the benefit of servicing personnel only. The operating procedures shown are not accurate and are only included to give an overall impression of the equipment to servicing personnel." Overview of the role of the Air Traffic Approach Controller, Marshaller and Talk Down Controller and the use of the Airfield Control Radar system in airfield operations use. Elements of the ACR 7D system described. Diagrammatic demonstration of radar display and responses. "The Deccaplot" - explanation of the Deccaplot overlay screen for assisting in plotting aircraft approaches.
Reel 2: Continuation of Deccaplot subject – explanation of recalibration procedure of radar and Deccaplot using calibration aircraft. "Servicing" - servicing schedules for ACR 7D system.