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OT: Torque

D

Dean

Well-known Member
Folks, the railroad buffs among you will know that a late 20 car passenger train is a heavy consist. Any such train would have been double-headed back in the day, or would have been given 3 EMD E units.

The Class J 611 in the video is one of the very last steam locomotives built. She was very modern when built in 1950 or so. She probably develops around 5,500 drawbar HP.

She has a single, double-acting cylinder on each side. The cylinders are 180 degrees out of phase. In effect, she is a four cylinder, single expansion engine. Watch the side arms and count the cadence.

Unlike an internal combustion engine, a reciprocating steam engine develops maximum torque at stall.

Watch how the 611 walks away with this heavy consist.

Note: Due credit to the engineer for preventing wheel slip. Believe me, there is far more torque available than adhesion allows.

Dean
N & W Class J 611
 
Beautiful video. (with no flame intended), I think the cylinders are 90 Degrees out of phase Listen carefully, and remember that if they were 180, both could be at front and back, making Zero torque. Jim
 
You have it correct. As soon as I read it. Now another thing is almost all locomotives are right handed. That means the rods on the right are 90? ahead as the engine runs. There were some left handed but very few. Crazy stuff we keep in our junk bin in the back of our heads. Another thing is the sand dribbling on the track and also alot of super power engines had an auxiliary booster engine under the tender. Very very slow speed but if so equiped you hear the main engine go chhhufff .chhhuff. and you hear a much quieter chuf chuf chuff chuff under the tender going like 10 times faster beat. Were a gear driven system with a centrifical throw out system.
 
I'm not normally a big train buff. Beautiful scenery -- classy engine -- great sound!

A very nice and impressive video. Thanks for posting this one.
 
In 1977 I rode the Chessie Steam Special between Cincinnati, OH and North Vernon, IN and back. The train was powered by former Reading 4-8-4 2101. The 4101 had a booster, I believe, on the 4 wheel trailing truck.

The 2101 pulled our 18 car special with around 2,200 passengers from Union Central Terminal in Cincinnati, OH to the Wye in North Vernon, IN, about 70 miles west and back unassisted. Unbeknownst to us, two EMD units were following us about one mile behind. They never coupled.

The route included the 12+ mile hill out of the Ohio River valley starting just west of my small farm and continuing to Milan, IN. Our train was down to around 25 MPH as we passed the steepest part of the hill near Moores Hill, IN. The sound was spectacular as the exhaust reverberated from the hills on either side of the valley.

Memories are made of this.

Dean
 
Dean, I take it you live in southeastern indiana? I have taken the kids on the polar Express at white river valley.( I am about 20 miles do east of north Vernon. The location of the first moving train robbery!)
 
We went to the Black Hills in August and road the 1880 train out of Hill city -- Nice scenic ride with lots of history - I t goes from Hill City to Keystone and back. steam locomotive at its best ! Roy
 
As a small child during WW2 I lived about 75 feet from the railroad cut and most nights the Streamliner came through about 11 PM going from Chicago to New Orleans. Made a lasting impression and I always enjoyed riding trains.
 
Have you ever watched a single cylinder steam engine when the engine was on (center)? The operator needs to turn the pulley to get it to move so the engine can turn. With a 2 cylinder steam engine and being 90 degrees out of phase one cylinder will have steam pushing on the piston so there is no dead spot.
 
Thanks for sharing Dean!
I've seen it before but always a good watch.

I'm a train buff especially Steam.

Waiting for UP to get the 4014 Big Boy back in service.
Have seen the 844 up close and personal.
Tom
 
I'm guessing that should be somewhere around Butlerville.

I'm in Dearborn County.

Dean
 
I've not seen 844 but it's on my list, as are the steam shops at Cheyenne.

Have you heard anything lately about the 4014?

Dean
 
Thanks Dean, always great to see your steam videos. I hear BigBoy 4014 is supposed to be ready for UP's 150th anniversary in May of 2019. Anxiously waiting for new videos on it. I'm seeing a lot of new videos on 844, hope they get 3985 back on the road soon too. Here's one of my favorites, supposedly one of the "loudest" locomotives every built
Frisco 1522
 
Dang good man on the throttle on that 1. Gonna head out to Cheyanne next summer to see the progress on big boy. Love 3985, that old gal is a real good puller.
 
(quoted from post at 00:08:23 09/26/18) I've not seen 844 but it's on my list, as are the steam shops at Cheyenne.

Have you heard anything lately about the 4014?

Dean
Click to expand...

I heard and saw the same info about having it ready for the UP 150 Year anniversary in 2019.

I also want to get to Cayenne.
It's on my bucket list.
Tom
 
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