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Model Railroad Tools |
Click for Model Railroad Home Page
On this page I have various handy tools. Right click on the name and select "Save Link As" to save a copy to your computer. The html files will run stand alone on your computer.
| Name | File | Notes |
|---|---|---|
| Railroad Scale Speed Calculator | html | Record time over measured distance and calculate the scale speed. from stoneysmith.com |
| Scale Dimension Converter | html | Convert dimensions up and down from full size to a scale of your choosing. Input in feet and/or inches or millimeters and the output in inches or millimeters. This runs in your web browser. |
| xlsx | A spreadsheet with time to travel a specified distance at various scale MPH. You can enter your own if you wish. Based on a SS from Gaugemaster.com | |
| Scale Speeds per Seconds | xlsx | A spreadsheet listing a scale MPH from the seconds to travel the specified distance. Print it as is or adjust the timing or distance to suit. Click for a guide to speed matching your locomotive decoders. |
| Car Weight Calculator | xlsx | A spreadsheet with calculations for the weight of cars per the NMRA RP-20.1 (rev Jan 1990) |
| Prototype 2 Scale Dimension Chart | xlsx | This spreadsheet is a handy reference to have for modeling. Select your scale in the pull-down and find the scale equivalent of prototype inches from 0-60. For a dynamic tool, see the "Scale Dimension Converter" above. |
| Spiral Easement Calculator for Track Construction | xlsx | A spreadsheet to calculate the spiral easements from tangent to curved track. Enter your curve radius and the desired length of the spiral; the sheet will generate 10 offset layout points. See tab "notes" for additional information. |
| Calculate a "no radius curve" where the delta angle is small and conventional easement spirals won't fit. | xlsx | As above, this spreadsheet will calculate an easement from the tangent (straight) track to the mid point of a small angle curve. Used back ot back, these gradually changing offset points ease into and out of the curve. |
| Build you own Trammel Bar. | Details for a homemade trammel bar to use for the layout of track radiuses and any other circular layouts. | |
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