Model vs prototype weights and area

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.

Whooa! I did good until I got to 5 1/2 acres for a 4 x 8 in HO. Really brings it into perspective. Good bit of info to keep in the back of your mind when designing a layout. Thanks that was interesting Stephen.
Terry[8D]

Stephen,

You obviously put a lot of work into making this chart; but it is very difficult to read.

To make your charts more readable, you should make a proper table on Word (or other word processor) and upload an image file (jpg) to a webhosting site like photobucket. Then insert it into your posting as you would any other photo.

chateauricher True, or people could just go to mywebsite, Might help as the formating there stayed properly. [:)]
But thanks for the idea.