Train Fans?

jpete · Post by **jpete** » Sat. Nov. 28, 2015 8:34 pm

I'm down in Nashville for a few days and thought you'd like to see what they have on display at Centennial Park.

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WNY · Post by **WNY** » Sat. Nov. 28, 2015 8:38 pm

Nice! Dang, I missed that. we were just down in Nashville for Halloween.

Will be in Chattanooga for New Years, I'll have to find some cool train stuff. Should be a lot around.

windyhill4.2 · Post by **windyhill4.2** » Sat. Nov. 28, 2015 9:01 pm

It appears as tho it weighs more than it can pull, OR, am I reading that wrong ?

Hambden Bob · Post by **Hambden Bob** » Sat. Nov. 28, 2015 9:41 pm

Definitely an old WW2 Chugger ! Thanx for the Pic !

Post by **coaledsweat** » Sat. Nov. 28, 2015 9:48 pm

windyhill4.2 wrote:It appears as tho it weighs more than it can pull, OR, am I reading that wrong ?

That is the tractive force.

Stoker6268 · Post by **Stoker6268** » Sat. Nov. 28, 2015 11:11 pm

Thats an awesome looking
j2 class 4-8-4 locomotive!
That one had an automatic stoker coal feeding system.

I used to work for the railroad. Now I'm just a certified Train Nut!!

SWPaDon · Post by **SWPaDon** » Sun. Nov. 29, 2015 8:07 am

Nice. Thanks for posting.

windyhill4.2 · Post by **windyhill4.2** » Sun. Nov. 29, 2015 11:46 am

coaledsweat wrote:
windyhill4.2 wrote:It appears as tho it weighs more than it can pull, OR, am I reading that wrong ?
That is the tractive force.

OK, I read what Wikipedia says about that & still not clear ... is that 57,000 # pulling power similar to the torque specs we use today ? Yes,i can be dense at times & slow to figure out some things that are not stated in everyday language. So I ask questions that likely make me look even stupider than I am,but I am not trying out for any beauty contest,so life goes on.

jpete · Post by **jpete** » Sun. Nov. 29, 2015 4:43 pm

Don't worry. I can't figure it out either.

SMITTY · Post by **SMITTY** » Sun. Nov. 29, 2015 4:49 pm

I'm guessing that probably means 57k ft.lbs. of torque. One ballsy mutha right there!

windyhill4.2 · Post by **windyhill4.2** » Sun. Nov. 29, 2015 5:01 pm

SMITTY wrote:I'm guessing that probably means 57k ft.lbs. of torque. One ballsy mutha right there!

Thank you,SMITTY,that makes the most sense to me so far,so that is what I will figure that it means.

Post by **Lightning** » Sun. Nov. 29, 2015 5:43 pm

My thinking, it means 57,000 pounds of thrust. Lateral force.
But that could be wrong...

Meaning if you were to chain a weight of 57,000 pounds to a pulley, it could lift it off the ground.

Post by **franco b** » Sun. Nov. 29, 2015 9:09 pm

Lee has gotten it exactly right. It can pull with a force of 57k pounds. That relates more to the friction it can develop between the drive wheels and rails. The engine might very well have available torque to pull more but the wheels would slip. Friction depends on pressure and the engine needs enough weight to develop that pressure. The pulling power is enough to pull many cars on wheels exceeding the weight of the locomotive.

Post by **coaledsweat** » Sun. Nov. 29, 2015 9:29 pm

It is kind of involved.

https://en.m.wikipedia.org/wiki/Tractive_force

Post by **Rob R.** » Sun. Nov. 29, 2015 9:58 pm

I can't compete with that...but I did just take my kids to see the Canadian Pacific Christmas train roll through town.