Shigar manyan bindigogi masu sarrafa kansu Bishop
Shigar da manyan bindigogi masu sarrafa kansu BishopOrdnance QF 25-pdr akan Mai ɗaukar hoto Valentine 25-pdr Mk 1,
Matsakaicin iyakar harbe-harbe na wani babban fashe-fashe mai nauyin kilogiram 11,34 shine 8000 m. Nauyin harsashi na shigarwa ya hada da fashewar abubuwa masu fashewa, huda makamai da kuma hayaki. Harsashin da aka dauko harsashi 49 ne. Bugu da ƙari, ana iya sanya harsashi 32 a kan tirela. Don sarrafa gobara, bindigar mai sarrafa kanta tana da tankunan telescopic da manyan bindigogi. Ana iya yin wuta da wuta kai tsaye da kuma daga rufaffiyar wurare. An yi amfani da bindigogi masu sarrafa kansu na Bishop a cikin rundunonin manyan bindigogi na gungun masu sulke, amma a lokacin yakin an maye gurbinsu da bindigogi masu sarrafa kansu na Sexton.
Halin da ake iya jujjuyawa na ayyukan yaƙi a Arewacin Afirka ya haifar da odar wani mashin mai sarrafa kansa dauke da bindigar QF 25 mai nauyin fam 25. A cikin Yuni 1941, an ba da amanar ci gaba ga Kamfanin Carriage Railway na Birmingham da Kamfanin Wagon. Bindigar mai sarrafa kanta da aka gina a wurin ta sami sunan Ordnance QF 25-pdr akan Carrier Valentine 25-pdr Mk 1, amma ya zama sananne da Bishop.
Bishop ya dogara ne akan burbushin tankin Valentine II. An maye gurbin turret ɗin motar tushe da wani gida mai sifar akwatin mara jujjuyawa tare da manyan kofofi a gefen baya. Wannan babban ginin yana dauke da bindiga mai nauyin kilo 25. A sakamakon wannan jeri na manyan makamai, abin hawa ya zama tsayi sosai. Matsakaicin girman girman bindigar shine kawai 15 °, wanda ya ba da damar yin harbi a matsakaicin nisa na 5800 m (wanda shine kusan rabin matsakaicin iyakar harbin nau'in nau'in 25-pounder a cikin nau'in towed). Matsakaicin raguwar kusurwa ya kasance 5°, kuma yin niyya a cikin jirgin saman kwance an iyakance shi zuwa wani yanki na 8°. Baya ga manyan makamai, motar za ta iya sanye da mashin Bren mai tsawon 7,7 mm.
Umurnin farko shi ne na bindigogi masu sarrafa kansu 100, wadanda aka kai wa sojojin a shekarar 1942. Daga baya kuma an yi odar wasu motoci guda 50, amma a cewar wasu majiyoyi ba a kammala ba. Bishop na farko ya ga aiki a lokacin yakin El Alamein na biyu a Arewacin Afirka kuma ya ci gaba da aiki a lokacin farkon yakin Italiya na Kawancen Yamma. Saboda gazawar da aka ambata a sama, haɗe tare da jinkirin saurin Valentine, kusan koyaushe ana ƙididdige Bishop a matsayin injin da ba a haɓaka ba. Domin ko ta yaya inganta rashin isashen harbe-harbe, ma'aikatan sukan gina manyan ginshiƙai masu karkata zuwa sararin sama - Bishop, yana tuki a kan wannan shingen, ya sami ƙarin kusurwar tsayi. A cikin sojojin, an maye gurbin Bishop da M7 Priest da Sexton bindigogi masu sarrafa kansu da zaran adadin na karshen ya ba da izinin maye gurbin.
Ayyukan aikin
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An kera bindiga mai sarrafa kanta ta Bishop tun a shekarar 1943 bisa tushen tankin sojan sama na Valentine light. Madadin turret, wata katuwar hasumiya mai girman rectangular, cike da rufaffiyar hasumiya mai dauke da bindiga mai girman mm 87,6 da aka sanya a ciki an dora shi a kan chassis na tankin, wanda kusan bai canza ba. Hasumiyar hasumiya tana da ƙaƙƙarfan kariyar yaƙi: kauri na farantin gaba shine 50,8 mm, faranti na gefe sune 25,4 mm, kauri na farantin sulke na rufin shine 12,7 mm. Igiyar howitzer da aka girka a cikin gidan keken tare da adadin wuta na zagaye 5 a minti daya yana da kusurwar jagora a kwance na kusan digiri 15, kusurwar tsayin digiri na +15 da kusurwar gangara na -7 digiri.
