An Ex Rocket Man's Take On It

The ravings of a trained mind.

Tuesday, May 12, 2026

Plenty of Iran War Failures to Go Around!

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The following is the text record of 3 recent messages I have sent to Senators John Cornyn and Ted Cruz,  and Representative Pete Sessions.  ...
Friday, May 1, 2026

“Entry By Hand”

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Why Know This Stuff? (1          (1)      It provides a more efficient way to expend limited resources (see Figure 1 ). (2) It is integr...
Tuesday, April 28, 2026

Preliminary Evaluation of Artemis-2 Heat Shield

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Not much credible information is yet available,  as only a handful of official NASA photos have been released.  There is one unofficial CBS ...
Friday, April 24, 2026

Trump the Incompetent Liar

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 I originally wrote this as a column and submitted it to the Waco "Trib" newspaper almost a week ago.  They have so far not chosen...
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About Me

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Gary Johnson
McGregor, Texas, United States
GW had a 20 year career in aerospace defense new product engineering, followed by a 20 year career in mostly teaching, with a little civil engineering and aviation work. He is now retired on a small farm in central Texas, occasionally building and selling cactus eradication tools, available for consulting, and offering a self-published book on ramjet propulsion. He has posted a lot of technical articles on this site, a catalog of which is in the post "Lists of Some Articles By Topic Area", dated 21 October 2021. For information about the ramjet book, see "GW's Ramjet Book Is Now Available!", posted 12 February 2024. Use the blog archive gadget as a navigation tool to find these quickly. He is also developing course materials for teaching or self-teaching in aerothermodynamics, and in the sizing of vehicles for space missions.
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