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big bores
The Beck tunnel boring machine (alternately Big Becky) was the largest tunnel boring machine in the world, when it was operated by Ontario Power Generation, from 2006 to 2011. Hydro used it to bore a deep replacement tunnel to supply water from the upper Niagara River 10.2 kilometres (6.3 mi) to the Sir Adam Beck Hydroelectric Plant. The tunnel it bored was 14.4 metres (47 ft) in diameter.
The tunnel was delayed when Beck encountered a bed of loose material, unsuitable for boring, that required a detour.
According to Ontario Power Generation the TBM itself weighed 2000 tons.
However, when its task was complete, Western Mechanical, the firm that removed Beck, described it weighing 7000 tons.
View More On Wikipedia.org
The tunnel was delayed when Beck encountered a bed of loose material, unsuitable for boring, that required a detour.
According to Ontario Power Generation the TBM itself weighed 2000 tons.
However, when its task was complete, Western Mechanical, the firm that removed Beck, described it weighing 7000 tons.
View More On Wikipedia.org
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Wacky Wheelguns
How's about a thread devoted to, well, those offbeat revolvers. Unusual designs, odd or gonzo calibers, curious provenance, strangely modified, home brews, or anything else a little, shall we say, wacky. Have some to share? Enjoy!- Discussion Thread
- Revolvers
- CountryGent
- Replies: 20
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John Jovino Modified Revolvers
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- Want to Buy
- Myrtle Creek
- Oregon
The now shuttered John Jovino Gun Shop in the Big Apple produced a number of interesting revolvers based on Smith & Wesson and Astra products. I'm interested in acquiring some of said examples (e.g., Effector, Terminator, et al.). Primarily interested in .357 Magnum, .44 Magnum and .45 ACP...- Classified Ad
- Handguns Wanted
- CountryGent
- Replies: 3
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