vontresc
En-Route
Anyone interested? Sean loaned me the Boigraphy of Elmer Sperry. First one to PM me gets it.
Here's a review
http://www.amazon.com/Gyro-life-times-Lawrence-Sperry/dp/0684157934
Here's a review
http://www.amazon.com/Gyro-life-times-Lawrence-Sperry/dp/0684157934