Reply to "Atlas CZ cars coupled distance (Photos added)"

Erik C LindgrenOGR Forum Member

John Johnson explained to me some easy math regarding our tight turns to run railroads in a relatively small space.

Reality a 16 degree minimum on the Union Pacific used on reversing Y's just for example. Slightly tight for mainline use is in o scale 2 rail an equivalent is 90" radius.

Some 3 rail figures compared to 2 rail.

O-108 Diameter
54" radius

O-72 Diameter (full circumference)
36" radius in 2 rail from center point to edge

O-120 minimum to run my new Key FT's are 60" radius.

I hope that makes sense and yes to most review.

5/6/1511:49 AM

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