 Through the 1950s and the 1960s Champion introduced variations on the 7-series design.Champion also developed and began production of the significantly upgraded follow-on to the 7-series, the 8KCAB Decathlon, as well as the twin-engined Lancer.Champion was acquired in 1970 by Bellanca Aircraft Corporation, which continued to produce most of the Champion designs in production at the time of acquisition.