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Les différentes échelles

The differents scales

Scale: The proportion that the model bears to the full size prototype - can be expressed either as size relationship (1":1ft) or a ratio (1:12, 1/12). Check the page of definitions for more details.

Échelle: La proportion entre le modèle réduit et le train pleine grandeur. Peut être exprimée en relation (1":1ft) ou en ratio (1:12 ou 1/12). Consultez la page des termes pour en savoir plus.

Gauge: The distance between the rails - generally inside rail to inside rail. Check the page of definitions for more details.

Écartement: La distance entre les deux rails, de l'intérieur d'un rail à l'intérieur de l'autre rail. Consultez la page des termes pour en savoir plus.


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  Scale name
Nom de l'échelle
Origin
Origine
Gauge
Écartement
Proportion
Proportion
Comments
Commentaires
  Model Engineering scales:
1     24" 5":1ft Live steam - parks & commercial
2     19" 4":1ft Live steam - parks & commercial
3     18" 4":1ft Live steam - parks & commercial
4     15" 3":1ft Live steam
5     10 1/4"   Triang Minex - proprietary 1960ís
6     9 1/2" 2":1ft  
7   USA 7 1/2" 2 1/2":1ft Live steam - narrow gauge
8     7 1/2" 1 6/10":1ft Live steam
9     7 1/2" 1 1/2":1ft Live steam
10   USA 7 1/4" 1 1/2":1ft Live steam
11     5 1/4" 1":1ft Live steam
12     3 1/2" 1":1ft Live steam - 3í6" gauge
13     3 1/2"   Live steam
  Model Railway scales:
14 VI Europe 181.8mm 1:5.5 NEM standard gauge
15 1" Britain 4 13/16" 1":1ft Defunct tinplate scale
16 No 5 gauge   4 5/8   Maerklin standard - 1891
17 V Europe 125mm 01:08 NEM standard gauge
18 11/16" Britain 3 1/4" 11/16":1ft Defunct tinplate scale
19 No 4 gauge   75mm or 3"    
20 IV Europe 90.9mm 01:11 NEM standard gauge
21 No 3 gauge   67mm or 2 5/8"    
22 III Europe 62.5mm 01:11 NEM
23   USA   2 1/2"  American Flyer
24 IIIe Europe 45mm 01:16 NEM narrow gauge
25 II Europe 54mm 1:22.5 NEM normal gauge - Magris
  Standard Gauge
26   USA 2 1/8"   Lionel, Boucher
27 IIm (or G) Europe 45mm 1:22.5  LGB Metre gauge models -"Garten"
28          
29 G USA 45mm 1:24-28 Narrow gauge - 2ft
30 SM45 Britain 45mm 16mm:1ft Narrow gauge - 3ft
31 SM32 Britain 32mm 16mm:1ft Narrow gauge - 2ft
32 No 1 Gauge Britain 45mm 10mm:1ft Standard. British modellers also use the more correct 3/8":1ft, 1:32 scale and most current trade offerrings are 1:32
    Europe 45mm 01:32 NEM normal gauge - Maerklin
33 9 mm NZ 32mm 9mm:1ft NZR models - 3í6" gauge
34 O Britain 32mm 7mm:1ft, 1:43.5  
35 OF Britain 32mm 7mm:1ft Fine scale - more accurate wheel std
36 ScaleSeven Britain 33mm 7mm:1ft, 1:43.5 Exact scale option
37 No 0 Gauge Europe 32mm 1:43.5  
38 O Europe 32mm 01:45  
39 O France 32mm 23mm:1m  
40 Om Europe     Narrow gauge - 1 mètre
41 O 27 USA 1 1/4" No scale Lionel Toys, 27" diameter curves
42 O 72 USA 1 1/4" No scale Lionel Toys, 72" diameter curves
43 O 17 USA 1 1/4" 17/64":1ft, 1:45  
44 O USA 1 1/4" 1/4":1ft, 1:48 NMRA standard
45 Proto 48 USA 1 11/64" 1/4":1ft, 1:48 Exact scale option formerly (1950ís-) known as 1/4" AAR, replaces Q
46 Q USA 1 3/16" 1/4":1ft, 1:48  
47 On3 1/2 USA 7/8" 1/4":1ft, 1:48 Narrow gauge - 3í6"
48 On3 USA 3/4" 1/4":1ft, 1:48 Narrow gauge - 3ft
49 On2 1/2 Britain 16.5mm 7mm:1ft Narrow gauge
50 O Minex Germany 16.5mm 01:43 Maerklin HO stud contact - 750mm gauge
51 Oe Germany 16.5mm 1:43.5 Fleischmann Magic Train - 750mm gauge
52 On2 1/2 (30) USA 39/64" 1/4":1ft, 1:48 Narrow gauge - 2í6"  
53 On2 USA 1/2" 1/4":1ft, 1:48 Narrow gauge - 2ft
54 On1 1/2 (18) USA 9mm 1/4":1ft, 1:48 Narrow gauge - 1í6"  
55   Britain 12mm 5.5mm:1ft 1.55.5 2í- 2í3" narrow gauge Tal-y-Llyn and Festiniog Railways
56 Fn3 (?) Britain 16.5mm 5.5mm:1ft, 1:55.5 3ft narrow gauge, IOM
57 H1 USA 7/8" 3/16":1ft, 1:64 Forerunner of S scale
58 S USA 7/8" 3/16":1ft, 1:64  
59 S 5í6" NZ   3/16":1ft, 1:64 Canterbury broad gauge
60 Sn3 1/2 NZ 16.5mm 3/16":1ft, 1:64 Represents 3í6" gauge
61 Sn3 USA 9/16" 3/16":1ft, 1:64 Narrow gauge - 3ft
62 Sn2 1/2 USA 15/32" 3/16":1ft, 1:64 Narrow gauge - 2í6"
63 Sn2 USA 3/8" 3/16":1ft, 1:64 Narrow gauge - 2ft
64 Table Top Europe 5/8"   Bing 1921-1934
65 OO Britain 16.5mm 4mm:1ft H Greenly - 1923 on
66 HO Britain 5/8" 3.5mm:1ft Developed from Bing standards
67 HO Britain 16.5mm 3.5mm:1ft Unusual, mostly foreign models, but a UK group now exists modelling British trains to HO and or P87 standards
68 OO Britain 16.5mm 4mm:1ft, 1:76.2 The standards formerly set by the BRMSB are now obsolete and largely ignored by the trade, a new OO scale association has recently been formed to define standards.
69 EM Britain 18mm 4mm:1ft, 1:76.2 (Eighteen Millimetre)
70 EM Britain 18.2mm 4mm:1ft, 1:76.2 Revised standard
71 EEM Britain 18.83mm 4mm:1ft, 1:76.2 A temporary step in the evolution of P4, has long been obsolete
72 P4 Britain 18.82mm 4mm:1ft, 1:76.2 P4 or Protofour was a radical rethink created by scaling down from the prototype and increasing tolerances by the minimum neccessary for practical production of components. It created quite a stir in 1966/67 but is now very well established. P4 standards are also used for modelling Irish Railways broad and Narrow gauges, using 21mm and 12mm gauges. And for modelling the GWR Broad gauge using 28mm gauge
73 S4 Britain 18.82mm 4mm:1ft, 1:76.2 Exact scale flangeways too, made possible by additional effort to reduce the production tolerances built into P4 standards
74 OO Broad G Britain 28mm 4mm:1ft, 1:76.2 GWR Broad Gauge - 7í0
75 Oon3 Britain 12mm 4mm:1ft, 1:76.2 3ft narrow gauge, IOM. Current kits production in this scale
76 OO9 Britain 9mm 4mm:1ft, 1:76.2 Narrow gauge on N gauge track
77 OO USA 19mm (3/4") 4mm/1ft (5/32") Prewar commercial
78 OOb5 1/4 Ireland 21mm 4mm:1ft, 1:76.2  
79 HOb5 1/4 Australia 18.5mm 1:87. Victoria - 5í3" broad gauge
80 OOE Europe 16.5mm 1.1mm:1m, 1:91  
81 HOE Europe 16mm 1:87. Followed from Bing, Bub 5/8" gauge
82 HO Europe 16.5mm 1:90. Trix Express
83 HO Europe 16.5mm 1:87. NEM standard
84 HO USA 16.5mm 3.5mm:1ft, 1:87.1 NMRA standard
85 P87 USA/Europe 16.5mm 1:87.1 Exact scale option analogous to P4.
86 Hon3 1/2 NZ 12mm 1:87. NZR - 3í6"
87 Hom Europe 12mm 1:87. Narrow gauge - 1 meter
88 Hon3 USA 10.5mm 1:87. Narrow gauge - 3ft
89 HOn900   10.33mm 1:87. Narrow gauge - 900mm
90 HOn800   9.18mm 1:87. Narrow gauge - 800mm
91 Hoe Europe 9mm 1:87. Narrow gauge - 750-785mm
92 HOn2 1/2 USA 9mm 1:87. Narrow gauge - 2í6"
93 Hon2 USA 9/32" 1:87. Narrow gauge - 2ft
94 HOn600   6.88mm 1:87. Narrow gauge - 600mm
95 HOz Europe 6.5mm 1:87. Narrow gauge - 600mm
96 E USA 19/32" 1/8":1ft, 1:96  
97 QO USA 6/10" 1/8":1ft, 1:96  
98 OOC Europe 14.3mm 1:100. "Cent" attempt to establish a logical scale
99 TT USA 12mm 1/10":1ft H P Products - "TableTop"
100 TT Europe 12mm 1:120.  
101 TT "120th" NZ 9mm 1/10":1ft, 1:120 NZR - 3í6" gauge
102 TT3 Britain 12mm 3mm:1ft, 1:101.6 Tri-ang 1950ís-60ís
103 TTX Britain 12mm 1/9":1ft, 1:108 Attempts to improve, not supported
104 TM Britain 13.5mm 3mm:1ft, 1:101.6 Scale/gauge ratio
105 Scale 3 Britain 14.2mm 3mm:1ft,1:101.6 3mm Society supports TT3 and Scale 3, components also used by residual TM users
106 QOO USA 0.3" 1/16":1ft, 1:192  
107 HH(O) USA 5/16" 1.75mm:1ft, 1:174 NMRA standard - c1948
108 OOO Britain 9.5mm 2mm:1ft, 1:152.4 Superceded by 2mm scale
109 2mm scale Britain 9.42mm 2mm:1ft, 1:152.4 Current 2mm Association
110 OOO Britain 9mm 2mm:1ft Lone Star Treble O - 1950ís, superceded by N
111 MiniTrix Europe 9mm 1:150. 1950ís push along trains
112   Europe 9mm 1:200. Arnold 1960
113 K Europe 8mm 1:180. Forerunner of N
114 N Europe 9mm 1:160. NEM standard - mid 1960ís
115 N USA 9mm 1:160. NMRA standard
116 N Britain 9mm 2 1/16mm:1ft, 1:148 Commercial scale used by GRAFAR and PECO, cannot really be called a British standard
117 N-NZR NZ 6.5mm 1:160. NZR - 3í6" gauge
118 Nm Europe 6.5mm 1:160. Swiss metre gauge
119 Nn3 USA 6.5mm 1:160. USA - 3ft gauge
120 TTT USA 0.236" 1/20":1ft, 1:240 NMRA proposed standard
121 Z Europe 6.5mm 1:220. Maerklin
122 HZ Germany 3.25mm 1:440. Railex - 1992
123 (X) British 3/16" 1mm:1ft R Walkley - 1935
124 Un-named British 1/8" 1:480. 1970ís

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