Boeing 757-300 - ndi medium- ndi wautali kwambiri kuposa zonyamula yonyamula anapanga ndege wosapitirira September 2, 1996. Pambuyo chitsimikizo, ndege analowa utumiki mu Condor pandege March 1999. ndege ntchito monga pa ndege zonse ndi hayala ndege ntchito. A ufulu wosankha wa commonality mu kapangidwe ndi opaleshoni parameres ndi zitsanzo zina za Boeing ndege kupanga izi mwina lipindulitsa pa ndege kulola ntchito katundu kale kupezeka ndi oyendetsa gulu.
The Boeing 757-300 ndi Baibulo ikuluikulu ya Boeing 757-200. Iye 7 mamita yaitali kuposa zinachitika ake, amene amalola kuti atenge pa bolodi 20 peresenti okwera kwambiri ndipo mpaka 50 peresenti ya kuwonjezeka kwa katundu chipinda. Choncho, Boeing 757-300 akhoza tizikhala anthu okwana 289 mu hayala Baibulo, ndi mtengo 10 peresenti m'munsi pa kilometre passazhiromesta, zabwino mu gawo lino la msika. ndege Izi sinafike m'malo Boeing 757-200, monga munthu akhoza kuganiza. Onse zitsanzo kupitiriza kupangidwa. Boeing 757-300 ali mlingo wofanana wa kasamalidwe Kuvuta ngati Boeing 767 ndi moyenera, akhoza lizilamuliridwa ndi oyendetsa mu kalasi ya makina popanda yaikulu ndondomeko retraining.
Boeing 757-300 akupitiriza mwambo wa kudalirika ndi chosavuta kumva Boeing 757-200. Onse Mabaibulo chimodzimodzi lakutsogolo ndi ulamuliro dongosolo, ngakhale makhalidwe ena anasintha. Kuwonjezera kukula fuselage, izi mawilo latsopano ndi matayala, galimotoyo, kumbuyo liners gudumu Chipilala, nagawa ndi kulimbikitsidwa phiko. chitsanzo Izi zida ndi zotuluka eyiti muyezo kuphatikizapo lotulukira anayi pa mapiko, ina mbali inayo.
Wopambana kamangidwe ka pa Boeing 777 anakhala zinachitika kwa Boeing 757. makhalidwe amusankha kuti ndege mkati kanyumba predtavlyaet danga lalikulu ndi omasuka, kupatula mwangwiro ndinazolowera kuyeretsa. Shopu zazikulu zofewa zounikira, amene, pamodzi ndi mizere yosalala denga kulenga mtendere umene unali. Kukweza kamangidwe ka denga additionaly komanso amalenga danga katundu. Dongosolo mpweya wa chipinda zonyamula chasinthidwa ndi ambiri okwera Boeing 757 ndemanga m'basimo ndithu kuwunika kusintha kwa dongosolo. Kwenikweni, yawonjezedwa ya zowongolera kamera ndi mafani wamphamvu kwambiri. Komanso, ndege ndi zida ndi zimbudzi zingalowe, amene kwambiri kuchepetsa kukonza nthawi pakati pa ndege.
The chida gulu la ndegeyo lakonzedwa oyendetsa awiri ndipo akukonzani ndi zikwangwani zamagetsi. Kompyuterizirovannaya ndi kwathunthu Integrated dongosolo ndege ulamuliro amapereka yoyenda yokha ulamuliro wa ayendetsa ndege, kuyambira zofunika ndi ankafika kuti ndichepe. Kuthana ulamuliro digito a panyanja, mphamvu injini ndi ulamuliro wa ndege, dongosolo zipangitsa mulingo woyenera njira kusankha ndi moyenera, yaifupi ndege nthawi.
Zipangizo Boeing 757-300 ndi Boeing 757-200 ndi ofanana kwambiri makhalidwe. Wamphamvu wapawiri-dera chopangira mphamvu kupanga Rolls-Royce ndi Pratt & Whitney ndi ndege izi m'gulu la ndalama ndi bwino mu makhalidwe phokoso.