list of 6 Axle diesel on 18" radius

Discussion in 'HO Scale Model Trains' started by alexander, Oct 27, 2006.

  1. AndyWS

    AndyWS Member

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    Geeps are by far the most prevalent locomotive on my roster as well. The six-axle locos don't get much use because as stated earlier the F-M Trainmaster is the only one that seems to handle the 18" curves okay.
  2. alexander

    alexander Member

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    as i said, my yard power is a SW1500 and road power is either the SW1500 or SD24
  3. green_elite_cab

    green_elite_cab Keep It Moving!

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    My general rule of thumb for EMD diesels is SD45 and below works on 18 inches. any bigger and you push it. for GEs, i've found the exceptable length to be the U36C. note that i said length. not to familiar with alcos, but you get the general idea.

    wheel base isn't really the problem. its coupler overhang that kills you.
  4. alexander

    alexander Member

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    yeah, that sounds right
  5. Russ Bellinis

    Russ Bellinis Active Member

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    One other thing that will enter into the equation besides the length of the locomotive is the wheel base. An Alco PA is not very long compared to some of the more modern freight power, but it won't handle 18 inch radius very well because the wheel base from the lead axle to the trail axle in each truck is longer than most other engines.