----- Original Message ----- From: "George Marcopulos" <[EMAIL PROTECTED]> . . . . . . the age old question arose: is there or has there ever been an open frog turnout that can handle both American Flyer and S scale? . . . . . . . > > > > > > If there were you would have heard of it.
In any turnout, real or model, the flangeway width at the frog and at the guard rail must be designed to accomodate the flange width of the wheels. This is essential to how a wheel smothly rolls thru a frog. Flange widths of AF and of scale are very different. People have come up with open frog turnouts that work more or less OK for scale and tinplate if the geometry is just right, and these are more reliable for trailing point train movement than facing point. But if you watch a scale wheel roll thru such a frog, you will see a very bumpy ride that would be unacceptable in railroading, scale model or real. Take Dick Karnes' advice and have a look at the current production SHS turnnout. This is the only reliable way to run wheels of all profiles. It is of course a true closed frog, with a frog point that swings so as to open to one direction and close to the other direction in synch with the main points. And the principle does have a real-world prototype, but that's another story. Tom Hawley -- Lansing Michigan The poll results are in....... To REPLY to the list, use REPLY ALL, to reply to the sender, use REPLY. I do NOT know if this works on all e-mail software, but it works on some of the most common ones. For those of you on DIGEST mode, all REPLY messages go to the list. Change your membership, change your message settings, use our CALENDAR, view shared files or photos, view the list archives, GO TO http://groups.yahoo.com/group/S-Scale/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
