The SCR-269 radio compass was used in aeroplanes for navigation, the weight of the entire system is 33.2 kg.
When tuned to a (long wave) beacon of an airfield or a radio (broadcast) transmitter (medium wave) on a known frequency, the corresponding bearing is shown in the display instrument. The pilot flies in the direction with a course deviation of 0°; when flying over the transmitter, the display changes to 180°.
The system consists of the actual BC-433-A receiver, one or two BC-434-A control units, the motorised adjustable loop antenna in a streamlined radome and accessories.
two VT66, one VT-74, four VT-86, one VT-87, two VT-93, one VT-94, one VT-96, one VT-105, two VT-109
In 1942, the SCR-269 radio compass developed by Fairchild Electronics was introduced in the US Air Force.
Emergency landings by B-24 Liberator bombers also made the technology of the radio compass known in Switzerland. After the end of the war, several systems were purchased; two complete systems (in order to be able to determine the location more precisely by double direction finding) were installed in each of the three Ju-52 aircraft, and two further systems in the Beechcraft C-45 of the Swiss national topography.
Eight SCR-269 G systems were thus procured after 1945.