Embraer ERJ-145 Delta ConnectionERJ 145 Delta Connection airplane model. Embraer began working on 50 seat regional jet concepts in the late 1980s. The original EMB145 (now renamed ERJ 145) concept was launched in mid 1989 and was essentially a stretched and jet engined EMB120 Brasilia. Features of this design included a straight wing with winglets and the two turbofans mounted forward of the wing as on most low wing turboprops. This design would have seated 45 to 50 passengers and