A regional jet (RJ) is a jet-powered regional airliner with fewer than 100 seats. The first one was the Sud-Aviation Caravelle in 1959, followed by the widespread Yakovlev Yak-40, Fokker F-28, and BAe 146. The 1990s saw the emergence of the most widespread Canadair Regional Jet and its Embraer Regional Jet counterpart, then the larger Embraer E-Jet and multiple competing projects. In the US, they are limited in size by scope clauses.
By October 2018, 1,800 Canadair Regional Jets have been delivered
The Sud Aviation Caravelle short-haul jet airliner was introduced in 1959
The Yakovlev Yak-40 was introduced in 1968
The Fokker F-28 was introduced in 1969 and was followed by the stretched Fokker 100 in 1988 and its Fokker 70 shrink in 1994.
A jet airliner or jetliner is an airliner powered by jet engines. Airliners usually have two or four jet engines; three-engined designs were popular in the 1970s but are less common today. Airliners are commonly classified as either the large wide-body aircraft, medium narrow-body aircraft and smaller regional jet.
The Boeing 737 was for many years the most widespread jetliner
The de Havilland Comet, the first purpose-built jet airliner
The Boeing 707, the first commercially successful jetliner
The Tupolev Tu-144, the first supersonic jet airliner