Ovation guitars, the back and part of some of the necks, are made from the same material that most helicopter blades are made from. George Kaman made a fortune on the design and composition of this new type of helicopter blade. He was also a guitar player so he could afford to play with exotic materials (his own)and build his own. Many years back my sister in law worked for Kaman Bearings an industrial offshoot of his Kaman company. I could have gotten an Ovation at manufacturers cost, however I wasn't particularly enthused about the slippery back and the mostly forward projection of the guitar. A little bit of trivia. DennisD


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