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RT-34/APS-13 Tail Warning
Radar (USA)
The RT-34/APS-13 is a low power UHF
tail warning
radar transmitter/receiver which was used in Allied aeroplanes such as
the
P51 Mustang and also the P-38L,
P-47D, P-61, P-63, P-82D in
the later stages of the war.
The equipment operates at 420 MHz with a receiver IF of 30 MHz and is
powered
by an internal rotary generator which is supplied from the aircraft 27V
dc
system.
The
electro-mechanical construction is all aluminium, and the equipment
uses
all miniature glass valves except for the voltage stabiliser which is a
VR105V
(0C3). The PA is two 6J6s.
Three modified APS-13
were employed as the primary radar altimeter fuse in the ‘LittleBoy’
atomic bomb dropped on the
Japanese city of Hiroshima.
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This
APS-13 equipment, serial number 13711:CRV, was manufactured by RCA, Camden,
New Jersey, USA under a contract number 458-DAY-44 (1944).
This equipment example is in
excellent
condition and appears to be complete mechanically and electrically and
is in working order. |
This
equipment has
been cleaned and repaired and is now functioning, although the pilots
cockpit warning unit is not held in the DRS collection.
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