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Post by chrisnt2002 on Oct 25, 2007 15:48:03 GMT
Hello
I'm new here so apologies if the answer to my question is buried in previous posts. What is the minimum curve that a Simplex can comfortably handle?
Chris
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Post by AndrewP on Oct 25, 2007 19:04:08 GMT
Model Engineers Handbook lists an absolute minimum radius of 18ft, recommends 40ft and gives a 'rule' that radius should not be less than 20 times the longest rigid wheelbase. I don't know the wheelbase of a Simplex but others surely do.
Hope this helps a little at least.
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Post by chrisnt2002 on Oct 25, 2007 22:58:27 GMT
Thanks
That makes it 25'. 0-4-0s for me then.
Chris
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Post by jgb7573 on Oct 26, 2007 7:45:43 GMT
How about a 3.5" Shay? You'd have no problems with the radius and a decent sized engine to boot.
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Post by ron on Oct 26, 2007 9:32:39 GMT
Hi Chris, welcome to the forum.
I was told the minimum radius was to be 20 X the fixed wheelbase, which in the case of standard Simplex is 14 1/4" which makes it about 24 ft, that's the figure I'm going to use when I start laying track next spring, I don't really have the room to go a great deal more than that.
Ron
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Post by chameleonrob on Oct 26, 2007 19:57:39 GMT
that 20 times fixed wheel base is the minimum, for yards and steaming bays, stations etc. unless you want excessive flange wear aim for 40 times. at my local club the curves are tight, the locos are big and we haul passengers every weekend and after 5 years all the leading wheels have flanges you can shave with.
rob
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Post by Shawki Shlemon on Oct 28, 2007 8:43:02 GMT
I agree with Rob 20 times is the minimum ,the greater the better but 30 to 40 is good . As for Shay the same applies but for the bogie .
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