Jeffrey /Ken,
The NMRA Recommended Practice (RP-20.1) for S scale specifies 2oz. + 1/2 oz.
per inch. Therefore, the 9.5 inch hopper would weigh 6.75 oz., not 11-12 oz.
I normally add about 1 oz. to my PRS cars, and this gives me about a 6.5 oz.
car for a 40 foot box car.
Lee Johnson
Walnut Creek, CA
On Feb 26, 2012, at 5:33 PM, ken garber wrote:
>
> The NMRA standard specifies 2 oz + 1 oz per inch. For the 9.5 inch hopper,
> the weight would then be 11-12 oz - a bit heavy?
>
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