Pedzisa mutsara unotevera: Pana 24 July 1943, mazuva pashure pokuguma kweRuhr campaign, Harris akarayira
"Operation Gomorrah", kurwiswa kweHamburg. Chinangwa chacho chaiva chokukanganisa kana kugumisa kugadzirwa kweU-boat muguta rechiteshi. Kuunzwa kwe"Window" kwakaputika gomba muGermany radar coverage uye mabhomba emvura, akabatsirwa neOBOE neH2S radar akakwanisa kupinda muzvidziviriro kuti aparadze pakati peguta. Gadziriro ye"Himmelbett" (canopy bed) yezvombo zveusiku zvinodzorwa neradar zvinotsvedza kupinda murukova rwezvimbambaira uye ipapo kushandisa radar yazvo imene kusarudza uye kurwisa zvimbambaira chimwe nechimwe yakanga yaenda. Migumisiro yokurwisa, uye kuziva kuti radar yeGermany yakanga yapofumadzwa kwenguva pfupi, yakatungamirira kushandiswa kwakapararira kweWild Boar (Wilde Sau) nzira mukati mezhizha ra1943. Bomber Command akapindura Wild Nguruve akavhiyiwa nokupfupisa nguva mabhomba vakapedza pamusoro maguta, kushandiswa Mandrel uye "kunyepera" kana diversion kurwisa. Basa rakawedzerwa re"Window" rakavharidzira radar ndokusiya varwi veGermany vane chigaro chimwe uye injini vasina nhungamiro kwenguva yakati. NJG 2 yakakundikana kupfura chero mabhomba eRAF. Mabhomba gumi nemaviri akatorwa nevatyairi vehondo dzehusiku; mapfumbamwe neNJG 3 uye matatu neNJG 1.