(06-01-2014, 08:49 PM)Super Wrote:(06-01-2014, 08:28 PM)sunhuntin Wrote: super, if you removed the counter weight, would they still be heavy enough to pull loads uphill?
I haven't tried it yet Sunhuntin but I don't see why not. The ones that have the rear weights I think are just there to balance the weight from the C Cell so removing it shouldn't be any different than an engine that uses a AA with no counter weigh like the Shinkansens but I am only guessing. In fact, now that I hear myself say that, I have had to add counter weights to the FRONT of a couple of Shinkanses because the nose was too light.
Sunhuntin,
To answer your question, it simply depends on the engine; engines like Edward, Henry, Gordon, and James(running on C-Cell batteries in their tenders) have additional weights to give the drive wheels traction as the fronts can "rear" up like a horse climbing hills or struggling to move a train. Tank engines like Thomas, Percy, Rosie, Stanley, Bill, and Ben only have additional weights to counteract the weight of the motor; I have removed the weights simply for the sake of lightening the strain on the motor, increasing their speed slightly and their pulling strength. Rarely have they gone wrong. Engines like Murdoch, Emily, Molly, Harvey, Hank, and Mighty Mac, who have their tender, or coach, holding the motor, I add weights to the locomotive as I shorten the large gap from the tender to the locomotive for a sake of realism; with such a light engine, and a shortened coupling, the locomotive often derails going around tight radii, up any sort of incline, or coming down one. The heavier the engine at the front, the more power the motor has and the less likely it is to come across a derailment when it is at work.
It's simply personal preference in regards to removing/adding these weights, but if you plan to modify the couplings of tender engines with a light locomotive, I recommend adding weights to the locomotive to prevent derailments; although it makes the motor sound like it is working harder, it is simply doing the same work if you were to give it a long or heavy train.
Hope this helps.
Residential train-afficionado in training, and Thomas & Friends fan.