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1.450 what is it?

Postby Hornet » Sun Apr 22, 2018 9:31 pm

OK. Probably a dumb question. But what is 1.450 scale? This I know O gauge is 7mm to a foot, OO is 4mm to a foot and N gauge is 2mm to a foot, but what exactly is 1.450? How is it worked out? I am trying to scale down a potential modeling scenario using dimensions gained from Google maps and I cannot figure out what the 1 or the 450 refer to, any help appreciated, Hornet.
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Re: 1.450 what is it?

Postby dkightley » Sun Apr 22, 2018 10:29 pm

Its really simple......something that is 450 inches long is scaled down to 1 inch long....or something 450 metres long becomes 1 metre long. The scale is 1:450....which means "divide the full size dimension by 450 to get the scale dimension". And its written as 1:450 and not 1.450 !! In other words...a ratio.

And in terms of the absolutely nonsensical and totally bewildering sizing method where imperial units are compared with metric units....as in "3mm scale", which is 1 foot represented by 3mm....T Gauge would be referred to as 0.666666666mm scale...or 0.6666666 mm to the foot! But thankfully...it's not!
Doug Kightley
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Re: 1.450 what is it?

Postby msimister » Mon Apr 23, 2018 11:32 pm

According to my calculations, for standard gauge it's actually 1/478th scale. 4' 8½" = 1435 mm. 1435/3 = 478. Not that anyone notices, or cares, I suspect.
Cheers,
Malcolm
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