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PostPosted: Thu Feb 27, 2014 5:11 pm 
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Joined: Fri Jan 10, 2014 6:12 pm
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Can anyone tell me what the flange-way widths are for the FT HO double x-overs. The NMRA spec. is 0.040-0.050 for RP-25 wheel sets. And can those flange-way gaps be altered when you're building the kits?


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PostPosted: Sun Mar 02, 2014 1:58 pm 
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Joined: Tue Feb 14, 2012 12:36 pm
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On my #6 Double crossover jig that is machined for code83 Micro Engineering rail i get a average measurement between the stock rail and guard rail heads of about .046-.049 and between the the rails at the frog about the same (.046-.049)
Hope this helps. Clint


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PostPosted: Sun Mar 02, 2014 5:17 pm 
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Joined: Sat Aug 13, 2005 10:48 am
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Location: East Texas - USA
The 'other' question: "Can you make adjustments?" Yes within limits. It's hard to spread the flangeway out because the fixture grooves set a maximum shift. You can however, file slices off the base and hold the rails tighter when desires. Caution: You don't want too tight a flangeway at the frog-wing relationship as that can affect longer wheel base equipment. Setting the flangeway on the guard rail side is best done with track check gauge from the frog rather than the adjoining stock rail. On a crossing, all the relationships are close and tight. Be sure and use a fixture made for the rail you choose to employ.

-ed-

_________________
-ed mccamey-
COSLAR RR - http://www.coslar.us/
NMRA Standards and Conformance Department
PROTO & FINE Scale Coordinator
I estimate I have about 5 pounds of coupler springs somewhere in the vicinity of my workbench.


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PostPosted: Mon Mar 03, 2014 1:02 pm 
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Joined: Fri Jan 10, 2014 6:12 pm
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Thanks for the feedback. 0.076-0.78" for the Fast Tracks flange-ways puts them slightly over the mid-point of the NMRA flange-way specific ations. Do you see any downside to opening them up to 0.079" with a diamond file if there are any problems with long wheel base locomotives?

thanks
George T. Galyon


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