Bigboy number plate dimensions

This drawing could be your starting point.

Make up a proportional scale....

Hope this helps: Gary

Using a proportional scale, the answer is:

Hope this helps / Gary: Rail-fan

The number board runs at an angle and based on this picture
https://www.railarchive.net/bigboys/up4010_rcl.htm
it looks to be a 45° angle. Don't worry I did the trig for you. here is my work. you will be able to get a valid vertical dimension from the picture above

-Zach

trainmaniac07 posted:

The number board

The correct term is "Number Plate", as the illuminated number boards are located on the top of the smokebox, on each side, mounted at an angle in order to be seen from depots and train order stations.

runs at an angle and based on this picture
https://www.railarchive.net/bigboys/up4010_rcl.htm
it looks to be a 45° angle. Don't worry I did the trig for you. here is my work. you will be able to get a valid vertical dimension from the picture above

-Zach

Thanks for the help!

My plate itself came out ok, the letters on the other hand...  I will blame it on blade drift.  Now to figure out what to do with it.  Perhaps use it as a door for a small cabinet...

thanks again,

Matt

Hi Matt:  This is an example of how I use plaques, that are road names. Glad this project is working out for you.

Gary: Rail-fan

not sure how accurate Post got the shape, but in case it would help...

i could also suggest Roger Goldman...

http://modelsteamengines.tripod.com/

i'm sure he'll have a drawing (for a few $).
cheers...gary

[ed... hold off a few days.  i sent a request for that drawing to a friend who built a Challenger (assume it's the same number board(?)  chances are pretty good that if he has it, he'll send me a copy.]

Anyone interested, might try contacting Wasatch Railroad Contractors, out there in Cheyenne, WY, as I thought they were going to offer correct reproductions of the 4004 front number plate.