Heres an idea. Handlay the track on a base of copper clad circuit board with code 40,55 or 70 rail. Just solder on the outsides of the rail. So the wheel flanges are touching the board slightly. The wheels will spin easier that way.
Gap the board between the rails. Fake some short ties between them.
Divide the section with gaps into three blocks A B C. Design a circuit [or have someone do it for you] that powers A with C dead then switches to A+B with C live. Then turns off B and turns on C with A dead and then C+B and repeats. A block is right rail positive; C block is left rail positive. B block switches between whichever block it's attached to.
That will wire it up so the loco on A pushes forward with no resistance then then get reistance from the loco on C and then the loco on C gets no reistance.
You might have to repower the locos with coreless motors. I believe they're free spinning unless powered. [I'm not 100%]
Look at this article.
Free-rolling steam locomotive drive Model Railroader, November 1985 page 90 ( "DAITO, TAKASHI", REGEAR, STEAM, ENGINE, LOCOMOTIVE, MR )
Eric
JBortle wrote:
Well...if you recall that sequence in the film, there was a lot of momentary wheel slippage in that battle of giants and I'm not at all sure how you could replicate that. Just running a pair of nose-to-nose locomotives back and forth a short distance is not going to convey the titanic struggle depicted in the film.
I'd have to say that setting up an arrangement in HO that would believeably mimic the action seen in the film would be almost impossible, using DCC or any other powering means.