Aircraft in the series include the ERJ135 (37 passengers), ERJ140 (44 passengers), and ERJ145 (50 passengers), as well as the Legacy business jet and the R-99 family of military aircraft. Each jet in the series is powered by two turbofan engines. The family's primary competition comes from the Bombardier CRJ regional jets. The ERJ145 was designed for a perceived new market for regional jet aircraft, where the increased speed, comfort and passenger appeal would outweigh the inherent fuel economy of the turboprop aircraft which were in service and in development. Embraer has introduced two shortened versions of the ERJ145. All three aircraft share the same crew type rating, allowing pilots to fly any of the three aircraft without the need for further training. The ERJ140 is 1.42 metres (4.7 ft) shorter, seating 44 passengers, and has 96% parts commonality with the ERJ145. The only significant changes are a shorter fuselage, a slightly derated engine and an increased range. The ERJ140 was designed with fewer seats in order to meet the needs of some major United States airlines, which have an agreement with the pilots' union to limit the number of 50-seat aircraft that can be flown by their affiliates. At launch, Embraer estimated the cost of an ERJ140 to be approximately US $15.2 million. The estimated cost of development of the ERJ140 was US $45 million. The ERJ135 is 3.54 metres (11.6 ft) shorter, seating 37 passengers, and has 95% parts commonality with the ERJ145. The first ERJ135 entered service in 1999. For further details on the ERJ family, click here. Specifications below are for the EMB-145 (ERJ-145). EMB-135 (ERJ-135ER) EMB-135 Legacy Business Jet EMB-145 (LJR-145)
