The Embraer E-Jet family is a series of narrow-body medium-range twin-engine jet airliners, carrying 66 to 124 passengers commercially, manufactured by Brazilian aerospace conglomerate Embraer. The aircraft family was first introduced at the Paris Air Show in 1999 and entered production in 2002. The series has been a commercial success primarily due to its ability to efficiently serve lower-demand routes while offering many of the same amenities and features of larger jets. The aircraft is used by mainline and regional airlines around the world but has proven particularly popular with regional airlines in the United States. The 1,400th E-Jet, an E175, was delivered on 6 December 2017, it had a backlog of over 150 firm orders on September 30th, 2017.