The Beechcraft Bonanza is one of the most important civil aircraft in aviation history. First produced in 1945 by the The Beech Aircraft Corporation it is still in production in 2004. Before 1982 the Bonanza (model 35) had a signature V tail. However, the V-tail had a fatal in-flight failure rate 24 times that of the conventional-tailed variant, the Debonair. The Bonanza was essentially dropped from production and the Debonair was renamed Bonanza model 36. The twin-engine variant of the Bonanza is called the Baron whereas the Twin Bonanza is a completely different aircraft.