The Bombardier CRJ100 and CRJ200 (previously Canadair CRJ100 and CRJ200) is a regional jet designed and manufactured by Bombardier Aerospace between 1991 and 2006, the first of the Bombardier CRJ family. The Canadair Regional Jet (CRJ) program, derived from the Challenger 600 business jet, was launched in early 1989. The first CRJ100 prototype made its maiden flight on 10 May 1991. Canada's first jet airliner to enter commercial service was introduced by launch customer Lufthansa in 1992.