QUOTE: Originally posted by toenailridgesl Walt, Yup, have added the weight, about 7oz all up. Can't make a comment re mine & longevity as it has only been test run, still not fully R/C converted. However, Dave Goodson (The Old Curmudgeon) in Seattle is the semi-official Bachmann tester (he does the GR mag B/mann reviews too) & he reckons the Indy is bullet-proof. Post the question over on http://www.mylargescale.com forum & get flooded with info :)
QUOTE: Originally posted by grandpopswalt Cappy, I can't speak to the issue of the "Annie's" quality but I'll share what I know about "weighting" an engine. You probably don't need a lecture on locomotive wheel slipping, but here goes anyway. A loco's "tractive effort" is a measure of how much it can pull, measured in tons. number of cars, etc. That pulling power is the product of both available torque and the adhesion of the drivers to the rails. The lighter the engine, the more likely it is to slip under load, regardless of how much power it has. Therefore if we add weight to the loco causing more friction between the drivers and the rails it will be able to pull more cars, tons, etc before the wheels start to slip. What's true in real life is also true in our miniatures, the bigger, heavier engines can pull more cars than the smaller, lighter ones. So in the case of the Indy, we put as much weight in the boiler, steam domes, air tanks as possible. Lead is prefered because it is the most dense. Auto wheel weights work well. Long winded way of saying, if you make it heavier it will pull more. Walt
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