I was going thru my dad's old engineering books and came across "Principles of Helicopter Engineering" (McGraw-Hill publications in aeronautical science) by Jacob Shapiro, published by McGraw Hill, 1956. I have it listed over on Ebay at http://www.ebay.com/itm/Rare-Princip...item417c5b1120
I will have a few more books listed as I sort thru things. He was a helicopter engineer from 1950 - 1970 and worked for Air&Space, Umbaugh Aircraft, Kaman Aircraft, and Sikorsky Aircraft. His specialty was gyrocopters. Below is a photo of some of his aircraft and the book.
I will have a few more books listed as I sort thru things. He was a helicopter engineer from 1950 - 1970 and worked for Air&Space, Umbaugh Aircraft, Kaman Aircraft, and Sikorsky Aircraft. His specialty was gyrocopters. Below is a photo of some of his aircraft and the book.
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