The Atlas #5 has a longer than normal lead. According to NMRA RP-12.25 a #5 switch curved rail should have a 48.385" radius, so add 0.625 for the center line and it should be just about 49" . Apparently Atlas has stretched the lead by about a 1/2" which yields a nominal 63ish inch radius (a #6 should have a 74 inch radius curved rail) .
Jim, Are you aware of the radius of the Atlas wye?
All my T-1 engines (different mfg.) go through the #5 turnouts but they all climb the rails on the wyes.
Brad at Signature Switch can make a replacement wye with a more generous radius for the restrictive Atlas wye and still fit within the foot print of the Atlas wye due to the over length of the Atlas wye.
The Atlas wye is supposedly 36" radius. We even had some issues with the three-rail version at the club. Ended up replacing it with a Ross. I kinda wish they had followed Ross' lead and made a #5 wye (+/- 5.5 degrees); from a divergence standpoint it was close to a #10 but had a #5 frog so wheel dip was minimal.
Jim, Are you aware of the radius of the Atlas wye?
All my T-1 engines (different mfg.) go through the #5 turnouts but they all climb the rails on the wyes.
Brad at Signature Switch can make a replacement wye with a more generous radius for the restrictive Atlas wye and still fit within the foot print of the Atlas wye due to the over length of the Atlas wye.
Tom, yes I am familiar with the Atlas wye and its relatively small radius. I can just sneak 80 foot observation cars through it to the turntable. I should have tested before cutting lumber and committing to the track plan.
On the other hand it is pretty useful in industrial areas.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .
Access to this requires an OGR Forum Supporting Membership
OGR Forum Supporting Membership
Help support this forum with an OGR Forum Supporting Membership. You will be able to watch the videos in the INSTRUCTIONAL VIDEO FORUM! A one-year OGR Forum Supporting Membership is only $12 per year, so sign up now!
OR
Access the ALL the OGR VIDEO FORUMS ANDover 300 back issues of OGR with a DIGITAL SUBSCRIPTION!