Skip to main content

Reply to "Cure for wheel drop at frog."

AGHRMatt posted:
prrhorseshoecurve posted:

IF you went with Ross Switches and/or have some Curtis Switches in the first place, You don't feel the Wheel drop at all!

Actually, in a 2-rail situation, you get wheel drop on larger frogs because of the space involved, the rail height, and the flange depth. With a larger Ross turnout, you do get some wheel drop even with hi-rail flanges and, like prototype, the flange rides on the base of the frog. We put the frog point in because some members run 2-rail cars and/or locomotives with smaller flanges. On the #8 curved turnout, we actually had a couple of hi-rail cars derail, so we knocked out the wheel drop issue entirely with the moving frog. There have been a few articles on making a "flying wing" turnout and (in theory) you could make a spring frog that's closed on the normal state, but springs open when the turnout is thrown.

On prototype railroads the outside of the flange does not ride on any surface. it make no contact with the bottom of the frog as stated. only the tread of the wheel rides on the surface of the rail head. that is only true on tinplate toy train wheels.

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
×