Reply to "Ross 11 degree switch vs O-72 curve limitations for large engines"

CAPPilotOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Tom,

Based on past posts here on the forum, a Ross 11 degree (or Regular) switch has points equivalent to about O-100 and a Ross #4 (14 degree) is equivalent to about O-72. On an earlier layout of mine, I had #4s in a crossover and all my big scale duplex engines, except my PRR T1, had no problems going forward or reverse through the crossover. The T1's tender would derail when backing through the #4 crossover, but had no problems with a single #4. A Regular switch, having a more gradual turn, would be even better.

I would think the Regular switch would be a very good choice over an O-72. Also, with either the Ross Regular or #4 switches, you will not have the bad S turn in a crossover like you would with a crossover made up of O-72 switches.

3/2/178:55 PM

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