untitled
MPSM (Modern Prototypical
Scale Modeling)
S Scale layouts set in the last 20 years (1978-1998)
-
Prototype to Proto:64 Curve Relationships
-
based on "Trackwork Handbook" from Paul Mallery
| Degree of Curve |
Radius in Actual Feet |
Proto:64 Radius in Inches |
| 1 |
5730 |
1074.375 |
| 2 |
2865 |
537.1875 |
| 3 |
1910 |
358.125 |
| 4 |
1433 |
268.6875 |
| 5 |
1146 |
214.875 |
| 6 |
955 |
179.0625 |
| 7 |
819 |
153.5625 |
| 8 |
717 |
134.4375 |
| 9 |
637 |
119.4375 |
| 10 |
574 |
107.625 |
| 11 |
522 |
97.875 |
| 12 |
478 |
89.625 |
| 13 |
442 |
82.875 |
| 14 |
410 |
76.875 |
| 15 |
383 |
71.8125 |
| 16 |
359 |
67.3125 |
| 17 |
338 |
63.375 |
| 18 |
320 |
60 |
| 19 |
303 |
56.8125 |
| 20 |
288 |
54 |
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