N851AE, one of Envoy’s ERJ-140s, turns into the ramp at International Terminal D at DFW. Hot on the heels of the launch of the Bombardier CRJ, Embraer launched its own regional jet in 1989 as well as the EMB-145 which started out as an evolution of the EMB-120 Brasilia turboprop. In fact, the original design of the EMB-145 would have had 75% parts commonality with the EMB-120. The Brasilia’s fuselage was stretched 18 feet and 6500-7000 lb thrust class turbofan engines were installed in overwing nacelles so the new regional jet could still use the Brasilia’s main landing gear. The wing was slightly swept and had winglets. It was thought that an evolution of the Brasilia would speed development and make it attractive to existing EMB-120 operators. By 1990, wind tunnel tests showed that a new swept wing was needed, but the engines remained in overawing nacelles. Further testing in 1991 refined the wings further but now the engines were moved to conventional underwing nacelles to improve drag. Another design change came in 1992 that moved the engines to the aft fuselage with the EMB-145 acquiring its final design layout. Further design refinements from 1992 resulted in the redesigned ERJ-145 (though the type certificate says EMB-145) diverging further from the EMB-120 Brasilia design to the point that only the structure of the nose section and cockpit are similar with some parts in the nose section having the same part numbers. #Avgeek #aviation #aircraft #planeporn #KDFW #DFW #airport #igTexas #planespotting #airlines #Embraer #ERJ140 #N851AE #AmericanAirlines #AmericanEagle #EnvoyAir #DFWavgeek #instagramaviation #splendid_transport #instaaviation #aviationlovers #aviationphotography #flight #AvGeeksAero #AvgeekSchoolofKnowledge #AvGeekNation (at DFW Airport) https://www.instagram.com/p/B2dKOwNBRUh/?igshid=h368o3bx9fcc
