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Crain's Scale and Gauge Encyclopedia

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Definitions • Standards   Scales > : Huge • Large • Medium • Small • Tiny

Crain's Scale / Gauge Encyclopedia
15 Scale Name:  M Scale          
  Scale Ratio:  1:13.5    
  Alternate Names:  7/8 Inch Scale 22.6 mm Scale  1:13.5 Scale  
     Represented   Scale       Model Track Gauge Error  Track
  Ser #     Gauge  Inches Ratio   In/ft  mm/ft       Inches           mm %  Used
  Correct Gauge:      
15 263  4ft 8.5in 56.5 13.5 0.889 22.6 4.19   106.30   0.0  
15 264  Meter 39.4 13.5 0.889 22.6 2.92   74.13   0.0  
15 265  3 Foot 36 13.5 0.889 22.6 2.67   67.73   0.0  
15 266  2.5 Foot 30 13.5 0.889 22.6 2.22   56.44   0.0  
15 267  2 Foot 24 13.5 0.889 22.6 1.78   45.16   0.0  
15 268  15 Inch 15 13.5 0.889 22.6 1.11   28.22   0.0  
  Commonly Used Gauges        
15 269  M Gauge 56.5 13.5 0.889 22.6 4.173   105.99   -0.3  
15 270  4" Gauge 56.5 13.5 0.889 22.6 4.000   101.60   -4.4  
15 271  Mn3 Gauge 36 13.5 0.889 22.6 2.750   69.85   3.1  
15 272  7/8"n3 Gauge 36 13.5 0.889 22.6 2.750   69.85   3.1  
15 273  Mn2 Gauge 24 13.5 0.889 22.6 1.766 1.820 44.86 46.23 -0.7  Ga.1
15 274  LS13.5 Gauge 24 13.5 0.889 22.6 1.766 1.820 44.86 46.23 -0.7  Ga.1
15 275  45 mm Gauge 24 13.5 0.889 22.6 1.766 1.820 44.86 46.23 -0.7  Ga.1
15 276  1-3/4" Ga 24 13.5 0.889 22.6 1.766 1.820 44.86 46.23 -0.7  Ga.1
15 277  Gauge 1 24 13.5 0.889 22.6 1.766 1.820 44.86 46.23 -0.7  Ga.1
15 278  7/8"n2 Ga 24 13.5 0.889 22.6 1.766 1.820 44.86 46.23 -0.7  Ga.1
15 279  13.5 / 45 Ga 24 13.5 0.889 22.6 1.766 1.820 44.86 46.23 -0.7  Ga.1
15 280  Mn18 Gauge 18 13.5 0.889 22.6 1.250 1.285 31.75 32.64 -6.3  Ostd 
15 281  7/8"n18 Ga 18 13.5 0.889 22.6 1.250 1.285 31.75 32.64 -6.3  Ostd 
15 282  O Ga USA 18 13.5 0.889 22.6 1.250 1.285 31.75 32.64 -6.3  Ostd 
15 283  Mn15 Gauge 15 13.5 0.889 22.6 1.125 1.285 28.58 32.64 1.3  
15 284  7/8"n15 Ga 15 13.5 0.889 22.6 1.125 1.285 28.58 32.64 1.3  
15 285  1-1/8" Gauge 15 13.5 0.889 22.6 1.125 1.285 28.58 32.64 1.3  
               
This is a relatively new entrant in the Scale Wars. but the use of Gauge 1 track to represent    
2 foot gauge is an obvious step. Sometimes quoted as 1:13.7 Scale, which makes it precisely  
7/8 inch Scale.          
           
Crain's Scale / Gauge Encyclopedia
16 Scale Name:  D Scale          
  Scale Ratio:  1:16    
  Alternate Names:  3/4 Inch Scale III Scale (in Europe) "III"=Roman Nm Threee
       3/4 inch = 1 foot Number 4 Scale (in USA)  
     Represented Scale       Model Track Gauge Error  Track
  Ser #    Gauge  Inches Ratio   In/ft  mm/ft       Inches           mm %  Used
  Correct Gauge:      
16 286  4ft 8.5in 56.5 16 0.750 19.1 3.53   89.69   0.0  
16 287  Meter 39.4 16 0.750 19.1 2.46   62.55   0.0  
16 288  3 Foot 36 16 0.750 19.1 2.25   57.15   0.0  
16 289  2.5 Foot 30 16 0.750 19.1 1.88   47.63   0.0  
16 290  2 Foot 24 16 0.750 19.1 1.50   38.10   0.0  
16 291  15 Inch 15 16 0.750 19.1 0.94   23.81   0.0  
  Commonly Used Gauges        
16 292  4" Gauge 56.5 16 0.750 19.1 4.000   101.60   13.3  
16 293  3-7/8" Ga 56.5 16 0.750 19.1 3.875   98.43   9.7  
16 294  3-3/4" Ga 56.5 16 0.750 19.1 3.750   95.25   6.2  
16 295  3-5/8" Ga 56.5 16 0.750 19.1 3.625   92.08   2.7  
16 296  D Gauge 56.5 16 0.750 19.1 3.504   89.00   -0.8  
16 297  Proto 16 56.5 16 0.750 19.1 3.531   89.69   0.0  
16 298  Gauge III 56.5 16 0.750 19.1 3.500 3.605 88.90 91.57 -0.9  Ga.4
16 299  3-1/2" Ga 56.5 16 0.750 19.1 3.500 3.605 88.90 91.57 -0.9  Ga.4
16 300  Gauge 4 56.5 16 0.750 19.1 3.500 3.605 88.90 91.57 -0.9  Ga.4
16 301  Dn42 Gauge 42 16 0.750 19.1 2.520   64.01   -4.0  Ga.3
16 302  Dm Gauge 39.4 16 0.750 19.1 2.362   59.99   -4.1  Ga.3
16 303  3/4"m Ga 39.4 16 0.750 19.1 2.500 2.566 63.50 65.18 1.5  Ga.3
16 304  Gauge 3 39.4 16 0.750 19.1 2.500 2.566 63.50 65.18 1.5  Ga.3
16 305  Proto 16n3 36 16 0.750 19.1 2.250   57.15 0.00 0.0  
16 306  Ga IIIn3 36 16 0.750 19.1 1.766 1.820 44.86 46.23 -21.5  Ga.1
16 307  3/4"n2.5 30 16 0.750 19.1 1.766 1.820 44.86 46.23 -5.8  Ga.1
16 308  LS16 Gauge 30 16 0.750 19.1 1.766 1.820 44.86 46.23 -5.8  Ga.1
16 309  1-3/4" Ga 30 16 0.750 19.1 1.766 1.820 44.86 46.23 -5.8  Ga.1
16 310  Gauge IIIe 30 16 0.750 19.1 1.766 1.820 44.86 46.23 -5.8  Ga.1
16 311  Gauge 1 30 16 0.750 19.1 1.766 1.820 44.86 46.23 -5.8  Ga.1
16 312  16 / 45 Ga 30 16 0.750 19.1 1.766 1.820 44.86 46.23 -5.8  Ga.1
16 313  3/4"m760 29.9 16 0.750 19.1 1.766 1.820 44.86 46.23 -5.5  Ga.1
16 314  3/4"m750 29.5 16 0.750 19.1 1.766 1.820 44.86 46.23 -4.2  Ga.1
16 315  LS16 Gauge 27 16 0.750 19.1 1.766 1.820 44.86 46.23 4.7  Ga.1
16 316  45 mm Gauge 27 16 0.750 19.1 1.766 1.820 44.86 46.23 4.7  Ga.1
16 317  1-3/4" Ga 27 16 0.750 19.1 1.766 1.820 44.86 46.23 4.7  Ga.1
16 318  16 / 45 Ga 27 16 0.750 19.1 1.766 1.820 44.86 46.23 4.7  Ga.1
16 319  Gauge 1 27 16 0.750 19.1 1.766 1.820 44.86 46.23 4.7  Ga.1
16 320  LS16 Gauge 24 16 0.750 19.1 1.766 1.820 44.86 46.23 17.7  Ga.1
16 321  45 mm Gauge 24 16 0.750 19.1 1.766 1.820 44.86 46.23 17.7  Ga.1
16 322  1-3/4" Ga 24 16 0.750 19.1 1.766 1.820 44.86 46.23 17.7  Ga.1
16 323  16 / 45 Ga 24 16 0.750 19.1 1.766 1.820 44.86 46.23 17.7  Ga.1
16 324  Gauge 1 24 16 0.750 19.1 1.766 1.820 44.86 46.23 17.7  Ga.1
16 325  3/4"n20 20 16 0.750 19.1 1.250 1.285 31.75 32.64 0.0  Ostd 
16 326  O Ga USA 20 16 0.750 19.1 1.250 1.285 31.75 32.64 0.0  Ostd 
16 327  3/4"n500 19.7 16 0.750 19.1 1.250 1.285 31.75 32.64 1.5  Ostd 
           
This is a popular live steam scale. Many model cars, trucks, and tractors are  
sold at 1:16 and 1:18 scales. A railway model scale of 1:17.5 is noted.  
       
Crain's Scale / Gauge Encyclopedia
17 Scale Name:  16 mm Scale        
  Scale Ratio:  1:19.1    
  Alternate Names:  16.0 mm =1 foot  2-7/8 Inch Gauge (as a scale name)
       SM Scale    5/8 Inch Scale        
     Represented   Scale       Model Track Gauge Error  Track
  Ser #    Gauge  Inches Ratio   In/ft  mm/ft       Inches           mm %  Used
  Correct Gauge:      
17 328  4ft 8.5in 56.5 19.1 0.628 16.0 2.96   75.14   0.0  
17 329  Meter 39.4 19.1 0.628 16.0 2.06   52.40   0.0  
17 330  3 Foot 36 19.1 0.628 16.0 1.88   47.87   0.0  
17 331  2.5 Foot 30 19.1 0.628 16.0 1.57   39.90   0.0  
17 332  2 Foot 24 19.1 0.628 16.0 1.26   31.92   0.0  
17 333  15 Inch 15 19.1 0.628 16.0 0.79   19.95   0.0  
  Commonly Used Gauges        
17 334  3-1/2" Ga 66 19.1 0.628 16.0 3.500   88.90   1.3  Ga.4
17 335  Gauge 4 66 19.1 0.628 16.0 3.500   88.90   1.3  Ga.4
17 336  3-1/4" Ga 66 19.1 0.628 16.0 3.250   82.55   -5.9  
17 337  3" Gauge 56.5 19.1 0.628 16.0 3.000   76.20   1.4  
17 338  2-7/8" Ga 56.5 19.1 0.628 16.0 2.875   73.03   -2.8  
17 339  Old Ga 3 56.5 19.1 0.628 16.0 2.835   72.01   -4.2  
17 340  2-3/4" Ga 56.5 19.1 0.628 16.0 2.750   69.85   -7.0  
17 341  2-5/8" Ga 42 19.1 0.628 16.0 2.675   67.95   21.6  
17 342  2-1/2" Ga 42 19.1 0.628 16.0 2.675   67.95   21.6  
17 343  2" Gauge 39.4 19.1 0.628 16.0 2.000   50.80   -3.0  Ga.2
17 344  Gauge 2 39.4 19.1 0.628 16.0 2.000   50.80   -3.0  Ga.2
17 345  LS19 Gauge 36 19.1 0.628 16.0 1.766 1.820 44.86 46.23 -6.3  Ga.1
17 346  45 mm Gauge 36 19.1 0.628 16.0 1.766 1.820 44.86 46.23 -6.3  Ga.1
17 347  1-3/4" Ga 36 19.1 0.628 16.0 1.766 1.820 44.86 46.23 -6.3  Ga.1
17 348  Gauge 1 36 19.1 0.628