Let us Now Praise Non-Famous Men

Charles H. Kaman, an innovator in the development and manufacture of helicopter technology and, following a wholly different passion, the inventor of one of the first electrically amplified acoustic guitars, died on Monday in Bloomfield, Conn. He was 91.

Here is more.  This bit is neat:

Mr. Kaman, a guitar enthusiast, also invented the Ovation guitar, effectively reversing the vibration-reducing technology of helicopters to create a generously vibrating instrument that incorporated aerospace materials into its rounded back. In the mid-1960s he created Ovation Instruments, a division of his [aerospace] company, to manufacture it.

And this:

With his second wife, Roberta Hallock Kaman, Mr. Kaman founded the Fidelco Guide Dog Foundation, which trains German shepherds as guide dogs for the blind and the police. Since 1981, Fidelco has placed 1,300 guide dogs in 35 states and four Canadian provinces, said Eliot D. Russman, the foundation's executive director.

"It came down to the helicopters, guitars and dogs," Mr. Kaman's eldest son, C. William Kaman II, said in a telephone interview.

It is a well-written obituary.