Model Railroad Hobbyist | July 2016 | #77 MRH Q-A-T column compiled by Joe Brugger Questions and Answers Sorting out track standards Q. I have been reading the posts about the various wheel- sets using NMRA S-4.4 and RP25 and Proto87. Let’s say I have code 83 or code 70 track.  It seems as if almost any kind of wheelsets will work until I get to the turnout. In the picture, the rail just before the frog has a bracket that would seem to catch on a flange. My other concern is the actual height of the frog in (1).  I drew two small lines in the circle to show the height of the top of the frog to the bottom.  It looks like it is smaller than a flange depth.  Wouldn’t a wheel just rise up over the frog?  Is that what the guard rail is for?    —santaynez A. The switch in the photo looks as if it may be built to fine scale standards. Any size flanges will work on regular track as long as the flanges don’t hit the spike heads, but the wheelsets and frogs have to be matched on turnouts and special work like crossings. XX MRH QUESTIONS, ANSWERS, AND TIPS • INDEX • TABLE OF CONTENTS