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Crain's Scale and Gauge Encyclopedia

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Crain's Scale / Gauge Encyclopedia
36 Scale Name:  S Scale          
  Scale Ratio:  1:64    
  Alternate Names:  3/16 inch = 1 foot    3/16 inch Scale      
       H1 Scale     CD Scale    
     Represented  Scale       Model Track Gauge Error  Track
  Ser #     Gauge  Inches Ratio   In/ft  mm/ft       Inches           mm %  Used
  Correct Gauge:      
36 853  4ft 8.5in 56.5 64 0.188 4.76 0.883   22.42   0.0  
36 854  Meter 39.4 64 0.188 4.76 0.616   15.64   0.0  
36 855  3 Foot 36 64 0.188 4.76 0.563   14.29   0.0  
36 856  2.5 Foot 30 64 0.188 4.76 0.469   11.91   0.0  
36 857  2 Foot 24 64 0.188 4.76 0.375   9.53   0.0  
36 858  15 Inch 15 64 0.188 4.76 0.234   5.95   0.0  
  Commonly Used Gauges  
36 859  S Broad 66 66 64 0.188 4.76 1.030   26.16   -0.1  
36 860  Proto 64 56.5 64 0.188 4.76 0.883 0.906 22.43 23.01 0.0  
36 861  S Fine Ga 56.5 64 0.188 4.76 0.883 0.906 22.43 23.01 0.0  
36 862  H1 Gauge 56.5 64 0.188 4.76 0.875 0.898 22.23 22.81 -0.9  Sstd
36 863  C-D Gauge 56.5 64 0.188 4.76 0.875 0.898 22.23 22.81 -0.9  Sstd
36 864  S Gauge 56.5 64 0.188 4.76 0.875 0.898 22.23 22.81 -0.9  Sstd
36 865  64 / 22.5 Ga 56.5 64 0.188 4.76 0.875 0.898 22.23 22.81 -0.9  Sstd
36 866  S Hi-Rail 56.5 64 0.188 4.76 0.865 0.885 21.97 22.48 -2.0  Lionel, Am Flyer
36 867  Sn3.5 Ga 42 64 0.188 4.76 0.649 0.672 16.48 17.07 -1.1  HOstd
36 868  HO Gauge 42 64 0.188 4.76 0.649 0.672 16.48 17.07 -1.1  HOstd
36 869  64 / 16.5 Ga 42 64 0.188 4.76 0.649 0.672 16.48 17.07 -1.1  HOstd
36 870  Sm Gauge 39.4 64 0.188 4.76 0.650 0.669 16.51 16.99 5.6  HOstd
36 871  HO Gauge 39.4 64 0.188 4.76 0.649 0.672 16.48 17.07 5.4  HOstd
36 872  64 / 16.5 Ga 39.4 64 0.188 4.76 0.649 0.672 16.48 17.07 5.4  HOstd
36 873  HO Gauge 36 64 0.188 4.76 0.649 0.672 16.48 17.07 15.4  HOstd
36 874  Proto 64n3 36 64 0.188 4.76 0.563 0.586 14.30 14.88 0.1  Sn3
36 875  Sn3 Gauge 36 64 0.188 4.76 0.563 0.586 14.30 14.88 0.1  Sn3
36 876  64 / 14.3 Ga 36 64 0.188 4.76 0.563 0.586 14.30 14.88 0.1  Sn3
36 877  Sn2.5 Ga 30 64 0.188 4.76 0.471 0.483 11.96 12.27 0.5  TTstd
36 878  Se Gauge 29.5 64 0.188 4.76 0.471 0.483 11.96 12.27 2.2  TTstd
36 879  Sm750 Ga 29.5 64 0.188 4.76 0.471 0.483 11.96 12.27 2.2  TTstd
36 880  TT Gauge 30 64 0.188 4.76 0.471 0.483 11.96 12.27 0.5  TTstd
36 881  64 / 12 Ga 30 64 0.188 4.76 0.471 0.483 11.96 12.27 0.5  TTstd
36 882  Sn2 Gauge 24 64 0.188 4.76 0.353 0.367 8.97 9.32 -5.9  Nstd
36 883  9 mm Gauge 24 64 0.188 4.76 0.353 0.367 8.97 9.32 -5.9  Nstd
36 884  N Gauge 24 64 0.188 4.76 0.353 0.367 8.97 9.32 -5.9  Nstd
36 885  64 / 9 Ga 24 64 0.188 4.76 0.353 0.367 8.97 9.32 -5.9  Nstd
   
This is a popular scale with many ardent adherents. The equipment is big  
enough to see detail modeling, yet small enough to allow for a decent sized  
railway in a basement or garage. S Hi-Rail is epitomized by American Flyer and  
Lionel train sets. The original S Scale name, H1, meant half of Number 1 Scale    
(1:32) but was sometimes shown as 1:60 scale.  
   
A scale of 1:65 is mentioned, using HO track for 42" gauge in Japan.  
   
36 886  HO Gauge 42 65 0.185 4.69 0.649 0.672 16.48 17.07 0.4  HOstd
   
Crain's Scale / Gauge Encyclopedia
37 Scale Name:  British OO Scale      
  Scale Ratio:  1:76.2    
  Alternate Names:  4.0 mm = 1 foot   4 mm Scale    
       Double-Oh Scale   Dublo Scale   EEM Scale  
       P4 Scale     S4 Scale   Scalefour  
     Represented  Scale       Model Track Gauge Error  Track
  Ser #     Gauge  Inches Ratio   In/ft  mm/ft       Inches           mm %  Used
  Correct Gauge:      
37 887  4ft 8.5in 56.5 76.2 0.157 4.00 0.741   18.83   0.0  
37 888  Meter 39.4 76.2 0.157 4.00 0.517   13.13   0.0  
37 889  3 Foot 36 76.2 0.157 4.00 0.472   12.00   0.0  
37 890  2.5 Foot 30 76.2 0.157 4.00 0.394   10.00   0.0  
37 891  2 Foot 24 76.2 0.157 4.00 0.315   8.00   0.0  
37 892  15 Inch 15 76.2 0.157 4.00 0.197   5.00   0.0  
  Commonly Used Gauges   ("Double-Oh")  
37 893  OO Wide Ga 84.3 76.2 0.157 4.00 1.106   28.09   0.0  
37 894  OO Broad 63 76.2 0.157 4.00 0.877   22.28   6.1  P4std
37 895  P4 Gauge 56.5 76.2 0.157 4.00 0.741   18.82   -0.1  P4std
37 896  Protofour 56.5 76.2 0.157 4.00 0.741   18.82   -0.1  P4std
37 897  OO/EM/18.83 56.5 76.2 0.157 4.00 0.741   18.82   -0.1  P4std
37 898  S4 Gauge 56.5 76.2 0.157 4.00 0.741   18.82   -0.1  P4std
37 899  Scalefour 56.5 76.2 0.157 4.00 0.741   18.82   -0.1  P4std
37 900  EMF Gauge 56.5 76.2 0.157 4.00 0.741   18.82   -0.1  P4std
37 901  EEM Gauge 56.5 76.2 0.157 4.00 0.741   18.82   -0.1  P4std
37 902  76 / 18.8 Ga 56.5 76.2 0.157 4.00 0.741   18.82   -0.1  P4std
37 903  EM Gauge 56.5 76.2 0.157 4.00 0.717   18.21   -3.3  EMstd
37 904   3/4" Gauge 56.5 76.2 0.157 4.00 0.750 0.772 19.05 19.61 1.2  OOstd
37 905  OO Ga Brit 56.5 76.2 0.157 4.00 0.650 0.669 16.51 16.99 -12.3  HOstd
37 906  OO/H Gauge 56.5 76.2 0.157 4.00 0.650 0.669 16.51 16.99 -12.3  HOstd
37 907  HO Gauge 56.5 76.2 0.157 4.00 0.649 0.672 16.48 17.07 -12.5  HOstd
37 908  76 / 16.5 Ga 56.5 76.2 0.157 4.00 0.649 0.672 16.48 17.07 -12.5  HOstd
37 909  Bing OO 56.5 76.2 0.157 4.00 0.625   15.88   -15.7  
37 910  Table Top 56.5 76.2 0.157 4.00 0.625   15.88   -15.7  
37 911  OOn3 Gauge 36 76.2 0.157 4.00 0.471 0.483 11.96 12.27 -0.3  TTstd
37 912  TT Gauge 36 76.2 0.157 4.00 0.471 0.483 11.96 12.27 -0.3  TTstd
37 913  OOn27 Ga 27 76.2 0.157 4.00 0.353 0.367 8.97 9.32 -0.4  Nstd
37 914  9 mm Gauge 27 76.2 0.157 4.00 0.353 0.367 8.97 9.32 -0.4  Nstd
37 915  N Gauge 27 76.2 0.157 4.00 0.353 0.367 8.97 9.32 -0.4  Nstd
37 916  OO-9 Gauge 27 76.2 0.157 4.00 0.353 0.367 8.97 9.32 -0.4  Nstd
37 917  OO9 Gauge 27 76.2 0.157 4.00 0.353 0.367 8.97 9.32 -0.4  Nstd
37 918  OOe Gauge 27 76.2 0.157 4.00 0.353 0.367 8.97 9.32 -0.4  Nstd
37 919  76 / 9 Ga 27 76.2 0.157 4.00 0.353 0.367 8.97 9.32 -0.4  Nstd
   
See following table for USA Double-Oh Scale  
Bing OO was also known as "Table Top" (not same as TT scale).  
S4 is a super fine scale standard, P4 is fine scale version of EEM and OO.  
   
Crain's Scale / Gauge Encyclopedia
38 Scale Name:  USA OO Scale      
  Scale Ratio:  1:76.2    
  Alternate Names:  USA Double-Oh  5/32 inch = 1 foot        
     Represented  Scale       Model Track Gauge Error  Track
  Ser #     Gauge  Inches Ratio   In/ft  mm/ft       Inches           mm %  Used
  Correct Gauge:      
38 920  4ft 8.5in 56.5 76.2 0.157 4.00 0.741   18.83   0.0  
38 921  Meter 39.4 76.2 0.157 4.00 0.517   13.13   0.0  
38 922  3 Foot 36 76.2 0.157 4.00 0.472   12.00   0.0  
38 923  2.5 Foot 30 76.2 0.157 4.00 0.394   10.00   0.0  
38 924  2 Foot 24 76.2 0.157 4.00 0.315   8.00   0.0  
38 925  15 Inch 15 76.2 0.157 4.00 0.197   5.00   0.0  
  Commonly Used Gauges USA  
38 926  OO(USA) Ga 56.5 76.2 0.157 4.00 0.750 0.772 19.05 19.61 1.2  OOstd
38 927  OO Gauge 56.5 76.2 0.157 4.00 0.750 0.772 19.05 19.61 1.2  OOstd
38 928   3/4 " Gauge 56.5 76.2 0.157 4.00 0.750 0.772 19.05 19.61 1.2  OOstd
38 929  On3 Gauge 56.5 76.2 0.157 4.00 0.750 0.772 19.05 19.61 1.2  On3
38 930  OOm Gauge 39.4 76.2 0.157 4.00 0.517   13.13 0.00 0.0  
38 931  OOn3 Gauge 36 76.2 0.157 4.00 0.471 0.483 11.96 12.27 -0.3  TTstd
38 932  TT Gauge 36 76.2 0.157 4.00 0.471 0.483 11.96 12.27 -0.3  TTstd
38 933  OOn2.5 Ga 30 76.2 0.157 4.00 0.413 0.429 10.49 10.90 4.9  HOn3
38 934  OOn27 Ga 27 76.2 0.157 4.00 0.353 0.367 8.97 9.32 -0.4  Nstd
38 935  OO-9 Gauge 27 76.2 0.157 4.00 0.353 0.367 8.97 9.32 -0.4  Nstd
38 936  OOe Gauge 27 76.2 0.157 4.00 0.353 0.367 8.97