Founder Charles Kaman (1919–2011) developed the first prototypes of the Ovation guitar in 1965–1966. Kaman, an amateur guitarist from an early age, worked on helicopter design as an aerodynamicist at United. Eventually, he founded a helicopter design company, Kaman Aircraft, in 1945.
The Kaman Corporation soon diversified, branching into nuclear weapons testing, commercial helicopter flight, development and testing of chemicals, and helicopter bearings production. In the early 1960s, however, financial problems from the failure of their commercial flight division forced them to expand into new markets, such as entertainment and leisure. Charles Kaman, still an avid guitar player, became interested in making guitars.
From 1966 to 2007, Ovation guitars, and later on Adamas guitars, were a brand of KMCMusicorp, which itself was a subsidiary of Kaman Aircraft.