Track Dianeter | O Gauge Railroading On Line Forum

alextwisterOGR Forum Member

I am thinking of changing my layouts tubular track to a more realistic flat rail track. I have heard that many track manufactures have different specifications in measuring the radius/ diameter of their track. What realistic flat rail track is the same or closest footprint to tubular Lionel track ?. I am using 072 and 042 gauge track.

5/9/183:03 PM

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MELGAROGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

I have used most diameters of Atlas O curved track with nickel silver rail. As close as I can measure and calculate, the diameter at the center rail corresponds to the track specification. 0-54 track has a 54-inch diameter at the center rail. However, they make O-36 and O-45, but I don't think they make O-42.

MELGAR

5/9/183:15 PM

Mike CTOGR Forum Member DIGITAL SUBSCRIBER

Atlas O45 inner, O54 outer. The pre-formed curves are every 9 inches. O27, O36, O45, O54, O63, O72, O81, O90, etc.

About 4.5" track center to center. Atlas flex track is very difficult to use. IMO.

5/9/184:13 PM

MoonmanOGR Forum Member

Ross O72 fits perfectly with Lionel O O72.

The Ross O42 is about 1 5/8" - 1 3/4" larger.

The Lionel O didn't use center rail - it "made a circle" 42" in diameter

Sorry, I named the photo incorrectly - it's O42

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