Question: What was an American regional airline called when it was founded in 1982, that company acquired a carrier operated a mixed fleet of Beechcraft 1900, Piper Navajo Chieftains, Beech 99 Airliners, and also occasionally utilized a Beech King Air 90 as a back-up aircraft?
Sentence (from "Business Express Airlines"): Business Express Airlines (IATA: HQ) , often referred to as Business Express or BizEX, was an American regional airline founded as Atlantic Air in 1982.
Relevant evidence: Yes