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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Perfectos</span></span>
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</style><div role="note" class="hatnote navigation-not-searchable">This article is about the WWII radio device. For the former baseball team, see <a href="History_of_the_St._Louis_Cardinals_(1875%E2%80%931919)" title="History of the St. Louis Cardinals (1875–1919)">History of the St. Louis Cardinals (1875–1919)</a>.</div>
<p><b>Perfectos</b> was a radio device used by <a href="Royal_Air_Force" title="Royal Air Force">Royal Air Force</a>'s <a href="Night_fighter" title="Night fighter">night fighters</a> during the <a href="Second_World_War" class="mw-redirect" title="Second World War">Second World War</a> to detect German aircraft. It worked by triggering <i><a href="Luftwaffe" title="Luftwaffe">Luftwaffe's</a></i> <a href="FuG_25a_Erstling" title="FuG 25a Erstling">FuG 25a Erstling</a> <a href="Identification_friend_or_foe" title="Identification friend or foe">identification friend or foe</a> (IFF) system and then using the response signal to determine the enemy aircraft's direction and range. This allowed RAF <a href="Interceptor_aircraft" title="Interceptor aircraft">interceptors</a> to track the Germans without the need for a radar system of their own, in contrast to the earlier <a href="Serrate_radar_detector" title="Serrate radar detector">Serrate radar detector</a> that lacked range information and thus required a radar of their own for the final approach.
</p><p>The resulting rapid ramp-up of night fighter losses in late 1944 alerted the Germans that the RAF was deploying a system to track them, and suspicion immediately fell on the Erstling. Pilots were told to leave their Erstling units turned off until they approached friendly airbases, where it was needed in order for their <a href="Flak" class="mw-redirect" title="Flak">flak</a> units to avoid firing on them. This resulted in further chaos as crews often forgot to turn them back on, and flak units became increasingly paralyzed as <a href="Friendly_fire" title="Friendly fire">friendly fire</a> incidents mounted.
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<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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</style><cite id="CITEREFBrown1999" class="citation book cs1">Brown, Louis (1999). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=uYgsr3exvS4C"><i>Technical and Military Imperatives: A Radar History of World War 2</i></a>. CRC Press. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>9781420050660</bdi>.</cite></li></ul>
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This article is issued from <a class="external text" title="Last edited on 2024-03-22" href="https://en.wikipedia.org/wiki/?title=Perfectos&oldid=1214937602">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.
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