Worthwhile three minutes-Big Boy fans.

Or is it 400 cu feet? I don’t think a tender holds 400 tons of coal…does it?

I can’t confirm the volume of the coal bunker in the tender, but the spec sheets I have for the Big Boy state coal capacity at 56,000 lbs (28 tons) for both the 1941 and 1944 tenders. The difference was the water capacity, 24,000 gals for the '41 version and 25,000 gals for the '44 version.

The total, loaded, weight for the 1941 tender was 427,500 lbs and the 1944 tender was 436,500 lbs.

The total package, locomotive and tender weighed 1,189,500 lbs in 1941 and 1,208,750 lbs in 1944.

24,000 gallons of wadder?

That’s equal to three 18 wheel tankers (8000 gal) of water aint it?

Deer Park, that’s a lot of water!! [:O]

Too bad there wasn’t a bottled water craze back then. UP could have defrayed their fuel costs with corporate sponsorships from Deer Park, Poland Spring, Aquafina, etc. with their billboards on the tenders. “If our water can fuel this locomotive, imagine what it can do for you!” [:D]