Subject:
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Re: Pulling power of different train systems
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Newsgroups:
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lugnet.trains
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Date:
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Fri, 27 Nov 2009 00:22:45 GMT
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Viewed:
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14211 times
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In lugnet.trains, Reinhard “Ben” Beneke wrote:
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Definitely. I am convinced, that in the first line the friction coefficient
is not depending (very much) on the weight. The different coefficients I
measured are basically due to different ages and types of rubber / silicon
material.
If you look at the table the probably most surprising numbers are those of
the 10153 motor without weight in contrast to the extreme weak 10020 engine.
The only explanation for this is the material of the “rubber” rings around
the driving wheels.
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The quality of the rubber is definitely a critical factor for friction, but it
is not the only factor. I’ve found with a normal 10020, one motor, pulling a few
Santa Fe coaches, the wheels will spin excessively (especially if you have a
slight grade). So I wasn’t encountering stalling so much as spinning. Some coins
in the battery compartment helped the problem. You need enough weight on the
motor to prevent spinning. My heavier locomotives seem to do a better job
pulling. I have some loaded with pennies, others that are built solid. The ones
with too many pennies are definitely too far (though it is fun to hand one to
someone at a show and watch their eyes bug out as they nearly drop it). I think
just building a solid locomotive with plenty of plates is a good target for
weight.
With the move back to battery trains, I don’t know why they didn’t resurrect the
toothed track. I suppose in an effort to match the 9v track as much as possible.
Benn
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Message is in Reply To:
 | | Re: Pulling power of different train systems
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| (...) Hi Ted, thanks for your feedback. (...) That would in fact have been favourable. My test rig suffered under the effects of friction in the 3 wheels, which lead the wire. I have tried to minimize this by using high diameters. It would also be (...) (14 years ago, 25-Nov-09, to lugnet.trains, FTX)
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