Model vs prototype weights and area.
I thought it might be fun to know what the scale sizes of things like area and weights would be. I hope you find this helpful.
SCALE Z N HO O 1/2 inch
ratio 220:1 160:1 87:1 48:1 24:1
Prototype
feet per 18.3’ 13.3’ 7.3’ 4’ 2’
inch of
model
Length
of a 2.5" 3.4" 6.2" 11.3" 22.5"
40 foot
car with
couplers
AREA
Prototype Ratio 48,400:1 25,600:1 7,570:1 2,300:1 576:1
equivalent
of an Dimension 880’ x 640’ x 348’ x 192’ x 96’ x
8’ x 4’ 1760’ 1280’ 696’ 384’ 192’
sheet
of
plywood Acres 35.55 18.8 5.56 1.6925619 0.4231404
one acre is 43,560 square feet
WEIGHTS
Ratio 10,650,000:1 4,100,000:1 658,000:1 110,000:1 13,800:1
Prototype
weight
per 665,500lbs 256,000lbs 41,400lbs 6,900lbs 860lbs
ounce
of
model
Weight
of a 0.33 ounces 0.85 oz 5.37 oz 31.9 oz 16 lbs
loaded
70 ton
[about
220,000
pounds]
hopper
PLEASE NOTICE that the weights etc are NOT NMRA recommended practices, but are instead true ratios of our models compared with the prototype.