 | | Re: More scale questions (Was: Scale of Lego)
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I checked out the low-end modelling market (Wal-Mart) and saw these scales: automobile -- 1:24 and 1:25 sci-fi -- 1:48 (O scale) military aircraft -- 1:72 1:48 naval (special on RMS Titanic :-P) -- 1:570 So, taking that and some great stuff from (...) (25 years ago, 29-Oct-99, to lugnet.trains, lugnet.build)
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| | Re: More scale questions (Was: Scale of Lego)
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(...) 4mm/ft? Crossing measuring systems surprises me, but I can see its usefulness in the name of accuracy. So 4mm/ft is roughly 1:76.2 . What does the 18.83 mean? Is this in any way related to the 28mm wargaming scale? Cheers, - jsproat (25 years ago, 29-Oct-99, to lugnet.trains, lugnet.build)
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| | Re: Engine Speed Regulation
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An otto and a diesel are different things. An otto is not reversible without a lot of thought about how to get the spark timing right. (25 years ago, 29-Oct-99, to lugnet.off-topic.geek, lugnet.trains)
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| | Re: Next meeting of the Northern Virginia Lego Train Club
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Oops, I forgot to post this to Lugnet.trains! Anyways, here it is: (...) Jeff NOVALTC Website: < (URL) > (25 years ago, 29-Oct-99, to lugnet.trains, lugnet.org.us, lugnet.loc.us.md, lugnet.loc.us.va, lugnet.loc.us.dc)
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| | RE: New Engine Pics
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Hi, It's a cool loco Dwayne. I like the Also see: (URL) related links from there. Since these were taken I have moved the front set of drivers back one lug. There are also other train pics on Baylug, at (URL) pick from the left menu. Mark (...) (25 years ago, 29-Oct-99, to lugnet.trains)
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| | Re: Engine Speed Regulation
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Great detailed explanations! If I simplify things, the throttle on a steam engine controls Torque. To set a certain speed with a certain load, a certain torque is needed. The speed regulator (governor) is a device that controls the applied torque so (...) (25 years ago, 29-Oct-99, to lugnet.off-topic.geek, lugnet.trains)
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| | (canceled)
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| | Re: Engine Speed Regulation
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(...) Sorry Larry, not true. The throttle controls the pressure in the steam chest (Ideally), which controls the speed. (in fact, it does regulate pressure, but also regulates volume) What you are suggesting is done on some engines (corliss mill (...) (25 years ago, 29-Oct-99, to lugnet.off-topic.geek, lugnet.trains)
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| | Re: Engine Speed Regulation
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(...) Working from memory and I could be wrong. But I doubt it. Review. Reciprocating steam engines function by admitting pressurised steam into a chamber (the cylinder) where it expands, doing work against the walls. One of the walls (the piston (...) (25 years ago, 29-Oct-99, to lugnet.off-topic.geek, lugnet.trains)
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| | Re: More scale questions (Was: Scale of Lego)
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In (...) More correctly for OO is 4mm/ft :) Some of us model to 18.83, which is exact scale gauge OO. (16.5, 18, 18.2,18.83,19 mm are all used with 'standard' gauge track in 4 mm :)0 (25 years ago, 29-Oct-99, to lugnet.trains, lugnet.build)
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