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Groups > rec.crafts.metalworking > #543737
| From | "Jim Wilkins" <muratlanne@gmail.com> |
|---|---|
| Newsgroups | rec.crafts.metalworking |
| Subject | Re: Watched tank running day at Bovington (UK) FWIW |
| Date | 2026-09-28 18:01 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <119eo2i$2ofnn$1@dont-email.me> (permalink) |
| References | <m1a4p1swlt.fsf@Admins-Air.Home> <119doj7$2bq1k$1@dont-email.me> |
"Jim Wilkins" wrote in message news:119doj7$2bq1k$1@dont-email.me... Bovington has a functional Tiger I and broken Tiger II, there's a running Tiger II in Saumur, France. As the war progressed bombing and lack of alloying metals cost German industry the ability to make adequately strong tank transmission gears, as well as stressed aero engine components. https://www.reddit.com/r/history/comments/jx6uiu/why_did_germanys_biggest_wwii_tanks_always_have/ -------------------------------- https://static1.squarespace.com/static/5d1810846e4b69000116772f/t/628c00db380dc66f9a261a85/1653342427999/Tanks+and+Tungsten+-+Germany%27s+Little+Big+Problem.pdf Straight cut spur gears can be made on simple milling machines like mine while more complex geometries require rotating the gear blank in exact synchronization with the motion of the cutting tool. I've read that US daylight bombing that targeted vital factories significantly hurt German machine tool and war production manufacturing capability, as did the hydrogen peroxide aircraft and U-boot propulsion programs that robbed the rest of industry of already scarce nickel and other alloying metals. This book mentions the problem. https://www.calum-douglas.com/current-book-the-secret-horsepower-race/ A measure of the difference is that German aero engines needed half again the displacement to match the power of Allied engines.
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Watched tank running day at Bovington (UK) FWIW Richard Smith <null@void.com> - 2026-09-28 07:45 +0100
Re: Watched tank running day at Bovington (UK) FWIW "Jim Wilkins" <muratlanne@gmail.com> - 2026-09-28 09:04 -0400
Re: Watched tank running day at Bovington (UK) FWIW "Jim Wilkins" <muratlanne@gmail.com> - 2026-09-28 12:11 -0400
Re: Watched tank running day at Bovington (UK) FWIW "Jim Wilkins" <muratlanne@gmail.com> - 2026-09-28 18:01 -0400
Re: Watched tank running day at Bovington (UK) FWIW "Jim Wilkins" <muratlanne@gmail.com> - 2026-09-29 12:26 -0400
Re: Watched tank running day at Bovington (UK) FWIW Richard Smith <null@void.com> - 2026-09-29 19:33 +0100
Re: Watched tank running day at Bovington (UK) FWIW "Jim Wilkins" <muratlanne@gmail.com> - 2026-09-30 07:15 -0400
Re: Watched tank running day at Bovington (UK) FWIW Bob La Londe <none@none.com99> - 2026-09-30 14:01 -0700
Re: Watched tank running day at Bovington (UK) FWIW "Jim Wilkins" <muratlanne@gmail.com> - 2026-09-30 18:44 -0400
Re: Watched tank running day at Bovington (UK) FWIW "Jim Wilkins" <muratlanne@gmail.com> - 2026-10-01 07:37 -0400
Re: Watched tank running day at Bovington (UK) FWIW "Jim Wilkins" <muratlanne@gmail.com> - 2026-09-28 13:29 -0400
Re: Watched tank running day at Bovington (UK) FWIW Bob La Londe <none@none.com99> - 2026-09-28 11:18 -0700
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