In article ,
"Keith Willshaw" writes:

"Stephen Harding" wrote in message
...
Keith Willshaw wrote:

Tail warning radars were extensively fitted in late ww2
The AN/APS-13 was made for fighters. This was a
low-power pulse radar set, operating that flashed a
red light and rang a bell when an enemy
aircraft was approaching from the rear.

They were fitted to later model P-51D's , P-38L's,
P-47D's and P-61's

Never heard of this for all these aircraft. Never even
heard of it for aircraft during the Korean War.

Did it actually work?


Apparently it did.

A bit too well, in fact. The radar didn't scan or sweep - it just
tansmitted and received a fan-shaped beam behind the airplane. It
rang its alarm whenever _anything_ entered that fan. The ground,
birds, you own wingman... people were going nuts reacting to the high
rate of false alarms, so most systems were deactivated or removed.

--
Pete Stickney
A strong conviction that something must be done is the parent of many
bad measures. -- Daniel Webster