Rulers of the World Scale Rulers Figure 1: Rulers of the World I-0087-HO ruler.
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– by Jeff Shultz
robably the most common question that model railroaders ask each other on meeting is “What scale do you model?” No matter what scale the answer is, Rulers of the World (http://www. precisionproducts.ca) probably has a ruler for it – from the 1:10,000 used in landscape and science fiction modeling to the 1:4 used in aircraft modeling, Rulers of the World currently has rulers for over 150 different scales – in either Metric or Imperial measurements. Each ruler includes both the scale measurements and a standard 6” or 15cm scale. The 1:87 HO Scale ruler I have is marked out to 45 scale feet, with markings for each foot and each 5 feet numbered. The rulers themselves are 6-1/2” x 2” (165mm x 50mm) in size, made of thick white styrene, with the markings appearing to be a vinyl applique on the styrene. Being only 6 1/2” long, they fit comfortably in
most pockets and have a hole at one end for hanging on the wall or workbench. Rulers of the World will make custom rulers (measurements mentioned included cubits, spans, hands, paces, and pitches, as well as fictional alien units) with a minimum order of 5 rulers of each custom scale. They are also interested in selling to local hobby shops, with a free dealer display included with a minimum purchase of 50 rulers at $2 each – the dealer can pick what scales they wish to stock. If you can’t find them at your local hobby shop, Rulers of the World sells direct from their website at http://www. precisionproducts.ca, with a secure site at Paypal as their shopping cart service. Their suggested retail price is $4 each, plus $1 shipping and handling if you order direct.
Figure 2: Comparison of a Rulers of the World
ruler and another plastic 1:87 scale ruler. Their measurements match up to 15 feet, but then begin to diverge slightly until they disagree by about ¼ of a scale foot at 45 scale feet.
Page 92 • Issue 11-05 • May 2011 • Rulers of the World Scale Rulers, page 1
List of Rulers - Train Specific Only (Note: insert Prefix I or M to SKU #, for Imperial or Metric). SKU #s Ratio Hobby I or M-0013.7 1:13.7 7/8” Scale Trains I or M-0019-F 1:19 Fn3 & 16mm Trains I or M-0020.3-G 1:20.3 G Scale Trains I or M-0022.5-G 1:22.5 G Scale Trains 1:24 G Scale Trains I or M-0024-G I or M-0029-G 1:29 G Scale Trains I or M-0032-1 1:32 1 Scale Trains 1:43 O Scale Trains (UK) I or M-0043-O 1:45 O Scale Trains (EUR) I or M-0045-O 1:48 O Scale Trains (USA) I or M-0048-O 1:64 S Scale Trains, Cars I or M-0064-S I or M-00762-00 1:76.2 OO Scale Trains HO Scale Trains I or M-0087-HO 1:87 TT Scale Trains I or M-0120-TT 1:120 I or M-0160-N 1:160 N Scale Trains 1:220 Z Scale Trains I or M-0220-Z I or M-0300-ZZ 1:300 ZZ Scale Trains I or M-0450 1:450 T Scale Trains, Ships
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