norfolksouthern37
what's a normal map?
Triaxles spread the gauge. Just ask the R&N whenever they drop a switcher because they decided to use one of their SDs to switch the day before.
It just causes more track maintainance. Though, I understand the Triaxles since that thing is so light, it probably helps with the tractive effort.
Essencially, yours has more power at the expense of causing the necessity of more track maintainance.
Though you are in the mid west, and I am basing it off of twisty Appalachian railroads, so I could be wrong.
on bad track yea they might spread the gauge. its funny that you say that, bc its usually discounted as just a rumor. there is no reason a tri axle should spread the gauge unless there is some kind of strong lateral forces or a real sharp curve. in fact, the reason SD units were made is to be LIGHTER and less destructive on the tracks. they do so by spreading the weight over more axles. it works, and the SDL39 i mentioned before was made for branchline operations where a normal 4 axle locomotive would have otherwise been too much direct weight on the rails. this is what made them special duty.
now, back to my original thought. Conrail refused to use the HTC trucks on its locomotives for a long time, simply because there was talk about the amtrak SDP40s spreading gauge because they rocked so bad (and they did -depending on who you talk to). i was going to say im ok because im using the tried and true 3 axle flexicoil and it doesnt damage the tracks. or so they say.