Reply to "036 Fastrak vs 042 Tube Track"

geysergazerOGR Forum Member SUPPORTING MEMBER

This comes up frequently enough there should be a sticky. MTH and Lionel Fastrack measure their curve diameters differently so a bit of apples/oranges.

A Fastrack "O31" curve measures 31 inches center-rail to center-rail:

An MTH Realtrax curve:

An MTH "O31" curve measures 31 inches to the edge of the roadbed ballast slope.

So to compare apples with apples, an MTH "O31" curve measured center-rail to center-rail:

The Realtrax curve measures 28⅝ inches

So then, a Fastrack curve diameter is 2.5 inches larger than the same numbered Realtrax curve.

Thus MTH "O42" = Fastrack "O39.5".

OTOH, IIRC Lionel O27 tubular track measures 27 inches to the outside of the ties.

Attachments

Show

8/23/198:10 AM

<ul id="{%=id%}ButtonGroup" class="button-group h-popup-buttons even-button-group even-1">
    <li id="{%=id%}Okay_buttonContainer"><a id="{%=id%}Okay" href="javascript:void(0);" class="button success no-margin-bottom h-alert-modal-ok-button" role="button">OK</a><script type="text/javascript">
        (function() {
            function {%=id%}Okay_click(event, data) {
            {%=id%}Popup.hide();
        }
        
                $('#{%=id%}Okay').on('click', {%=id%}Okay_click);
        })();
    </script></li></ul><a href="javascript:void(0);" class="close-reveal-modal" aria-label="Close Modal">&#215;</a><div class="last-modal-focus focus-utility-element" tabindex="0"></div>
</div>
<script type="text/javascript">
        (function() {
            {%=id%}Popup = new SS.Popup.ModalPopup('{%=id%}');
        })();
    </script>

Skip to main content

Attachments

Membership Required

Remove From Your Block List

Manage Follow Preferences

Block

OGR Forum Supporting Membership Required

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 AND over 300 back issues of OGRwith a DIGITAL SUBSCRIPTION!

Please wait...

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!

Access the ALL the OGR VIDEO FORUMS AND over 300 back issues of OGR
with a DIGITAL SUBSCRIPTION!