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AFT President & Founder | ASME Fellow - Trey founded AFT in 1993. He was the original developer of AFT Fathom (including the GSC and XTS modules), AFT Arrow and AFT Impulse. He was active in software development until 2011 and still works with the development team in addition to managing AFT. He has taught hundreds of training classes on AFT’s...

AFT President & Founder | ASME Fellow - Trey founded AFT in 1993. He was the original developer of AFT Fathom (including the GSC and XTS modules), AFT Arrow and AFT Impulse. He was active in software development until 2011 and still works with the development team in addition to managing AFT. He has taught hundreds of training classes on AFT’s software products in twelve countries across every populated continent. He worked previously for General Dynamics in cryogenic rocket design and Babcock & Wilcox in steam/water equipment design. He holds a BSME (1985) and MSME (1986), both from the University of California, Santa Barbara. He is a registered Professional Engineer.  

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Trey Walters

A Scenic Journey into Colorado's Mining Past Over Engineer Pass

With 54 peaks over 14,000 ft (4270 m) in elevation, the state of Colorado has many ways to get high. And rich. Once upon a time the path to riches was found underground, not on the peaks. During the 1870's mining towns began to emerge in Colorado. Colorado was definitely the "wild west" during those days!The mines operated over the next 20-30 years...
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Trey Walters

Keeping the Future COVID-19 Vaccine Cool

Nations handle the interaction between their government and the business/industry sector differently. Earlier in life I was firmly of the belief that governments should not interfere with business/industry as, despite the best of intentions, they typically make things worse and only add on bureaucracy without providing any net value in the end. As ...
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Trey Walters

Secret Variable-g Feature in AFT Software? Yep, And it is Now Visible to All

When I wrote AFT Impulse 1 back in 1996, I slipped in an undocumented feature to make it capable of modeling the first waterhammer project I did in industry. Since then, this feature had a secret (i.e., undocumented) way of being enabled. AFT Impulse 8 will be released any day, and we have finally made this feature accessible to all. In the User Op...
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Trey Walters

Space – Fiction and Reality Both Equally Entertain

I am a child of the Space Age. When I was a young boy we had one color television. On one day I was watching the original Star Trek TV series with my father (through reruns), then the next day watching the Apollo missions take men to the Moon. The fiction and reality of space travel were intermixed in my young mind of around 1970. Fast forward to t...
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Trey Walters

You gotta see this! New multi-scenario graphing and animation in AFT Impulse 8

Really? Another blog about features in AFT software? Yes, really. And there is a good reason for it. Because this new feature in AFT Impulse 8 will change your life. Well, it may not change your life, but it will forever change how you do your waterhammer analysis. I am talking about the new multi-scenario graphing and animation feature. This brand...
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Trey Walters

Predicting the Future is Easy

Every year countless people make predictions on a countless number of things. For example, every year there are people who predict a financial crisis of some kind. There are people who predict significant natural disasters. And there are people who predict a health crisis – such as the current COVID-19 pandemic. When one of these unusual events act...
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Trey Walters

The Modern World, Technology, Social Distancing and Pandemics

Like most of you, I have no expert advice to give related to the current worldwide pandemic caused by COVID-19 – also known as the Coronavirus. Thus, I won't presume to offer advice or wisdom on that topic. But everyone is talking about, reacting to and being affected by the pandemic. It seems almost insensitive to not acknowledge that. As the Pres...
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