William Hamman
Contributor
William Hamman - Jean Hamman
I have been professionally involved in the aerospace field for 27 years, most of that time in the linked areas of guidance, navigation and flight control. I am particularly interested in the theory and technology of spaceflight, as seems fitting for someone who grew up during the Apollo era, and I've never gotten over the raw hero worship that comes from being nine years old and watching men walk on the moon.
Though spaceflight is my most enduring passion, I have many other interests - scale modeling, history, the history of aviation, and mountaineering, to name a few.
I live in Wittmann, Arizona, with my wife and nine miniature horses.
Latest Articles
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Mariner 4
Mariner 4 was the first space probe to photograph Mars and profoundly affected how we viewed Mars as a result
Aug 12, 2007
- William Hamman
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Ideal Rocket Equation
The Ideal Rocket Equation predicts rocket velocity on the basis of specific impulse and mass ratio and hints at deep truths in rocket engineering.
Aug 9, 2007
- William Hamman
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Specific Impulse
Specific impulse is a measurement of the efficiency of a given set of rocket propellants that in turn strongly impacts overall rocket engine performance.
Jul 31, 2007
- William Hamman
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