The Radar Room

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APS-13 ‘TAIL’ RADAR

APS-13 ‘TAIL’ RADAR

The APS-13 radar unit was a short range radar set designed to monitor the rear of an aircraft in flight, to identify if an aircraft was following behind it.

There were no screens or display units attached, the only warning given to the pilot was by the sounding of a bell and turning on a warning light. Using these simple devices, it was possible to install the unit into a single seater fighter aircraft such as the American P51 Mustang. However useful the unit could be, there was a differing of opinion by the pilots using it, some of whom loved it whilst others kept it turned off.

Component parts for the installation

Component parts for the installation

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Mustang P51 tail radar aerials mounted either side of the tail fin (vertical stabiliser)

APS-13 aerials mounted to either side of the tail

seen here on a P51 Mustang

Tail radar operating range

P51 manual extract showing the approximate range and coverage of the APS-13 tail radar