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| Re: Here's the problem with gas-turbine trains (321822) | |||
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Re: Here's the problem with gas-turbine trains |
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Posted by RonInBayside on Tue Oct 10 01:05:19 2006, in response to Re: Here's the problem with gas-turbine trains, posted by Olog-hai on Tue Oct 10 00:59:27 2006. Axial flow turbojets of the type used were the worst in that they were most efficient at high altitude. The Navy uses gas turbines to power ships because there's no other way, short of a nuclear reactor, to get a big warship up to 30+ knots. Similarly, the Abrams tank can shoot accurately while rolling 40 mph over open ground, which makes it an incredibly powerful weapon, and the gas turbine is hat allows 70+ tons to get to that speed relatively quickly. But it sucks fuel like it's going out of style!The FRA restriction is outside the NEC, by the way. Amtrak has permission to do up to 150 mph where possible. |
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