[PAR] [TLE] Cirrus Aircraft [SEP] The Cirrus Aircraft Corporation (formally Cirrus Design Corporation) is an aircraft manufacturer that was founded in 1984 by Alan and Dale Klapmeier to produce the VK-30 kit aircraft.  The company headquarters is located in Duluth, Minnesota, United States.  As of June 2015, Cirrus had delivered over 6,000 aircraft in 16 years of production, and has been the world's largest producer of piston-powered aircraft since 2013. [PAR] [TLE] Klapmeier brothers [SEP] The Klapmeier brothers, Alan Lee Klapmeier (born October 6, 1958) and Dale Edward Klapmeier (born July 2, 1961), are American aircraft designers and aviation entrepreneurs who together founded the Cirrus Aircraft Corporation in 1984.  Under the leadership of the Klapmeiers, Cirrus was the first aircraft manufacturer to install a whole-plane parachute recovery system as a standard on all its models—designed to lower the airplane (and occupants) safely to the ground in case of an emergency.  The device is attributed with saving over 140 lives to date.  Cirrus was also the first to use all-composite airframe construction and glass panel cockpits on production aircraft, which many say revolutionized general aviation for light aircraft pilots.
[PAR] [TLE] Cirrus Aircraft [ SEP ] The Cirrus Aircraft Corporation ( formally Cirrus Design Corporation ) is an aircraft manufacturer that was founded in 1984 by Alan and Dale Klapmeier to produce the VK-30 kit aircraft . The company headquarters is located in Duluth , Minnesota , United States . As of June 2015 , Cirrus had delivered over 6,000 aircraft in 16 years of production , and has been the world 's largest producer of piston - powered aircraft since 2013 . [PAR] [TLE] Klapmeier brothers [ SEP ] The Klapmeier brothers , Alan Lee Klapmeier ( born October 6 , 1958 ) and Dale Edward Klapmeier ( born July 2 , 1961 ) , are American aircraft designers and aviation entrepreneurs who together founded the Cirrus Aircraft Corporation in 1984 . Under the leadership of the Klapmeiers , Cirrus was the first aircraft manufacturer to install a whole - plane parachute recovery system as a standard on all its models — designed to lower the airplane ( and occupants ) safely to the ground in case of an emergency . The device is attributed with saving over 140 lives to date . Cirrus was also the first to use all - composite airframe construction and glass panel cockpits on production aircraft , which many say revolutionized general aviation for light aircraft pilots .
When was the aircraft manufacturer at which Klapmeier brothers was a co-founder founded?
When was the aircraft manufacturer at which Klapmeier brothers was a co - founder founded ?
1984
1984