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GE Dash 9 Loco

GE Dash 9 Loco

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Oil Slick
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Hauling for BNSF I noticed the GE Dash 9 has a interesting shock package. On one side it 2 shocks on the front traction motor and no shocks in the rear. But on the other side has 2 on the rear but non on the front. So they only have shocks on one side in the front and opposite side only has them on the rear.

This doesn’t make much sense to me. Seems like all three axles would have shocks and on both sides. Any ideas why they might do it this way?
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Mon, Apr 6, 2020 6:14 AM
Rome K/G
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The shocks just help control the side sway or rocking of the upper frame when rolling down the track.
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Mon, Apr 6, 2020 6:37 AM
Claney
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Reply to Rome K/G:
The shocks just help control the side sway or rocking of the upper frame when rolling down the track.
Shocks probably helped, but those engines still ride ruff on not so smooth rails. I

know because they kept me awake LOL

By the way what are you hauling for the big new Santa Fe???

Sounds like you are still working thru this virus thing. Not close to Amarillo???

Stay safe and virus free. To both of you.

See ya Claney
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Mon, Apr 6, 2020 8:10 AM
Oil Slick
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Reply to Claney:
Shocks probably helped, but those engines still ride ruff on not so smooth rails. I

know because they kept me awake LOL

By the way what are you hauling for the big new Santa Fe???

Sounds like you are still working thru this virus thing. Not close to Amarillo???

Stay safe and virus free. To both of you.

See ya Claney
C, going from Barstow Ca to Belen Nm. Just went through Amarillo last week. No idea why anyone would want to live in all that wind. Guess it’s good for virus conditions cuz no one wants to go outside. LoL

I would have contacted you but I’m trying to be safe. We even disinfect the bottom of our shoes. Hate to track the virus inside and dog steps in it and runs around.
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Mon, Apr 6, 2020 8:24 AM
Oil Slick
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Reply to Oil Slick:
C, going from Barstow Ca to Belen Nm. Just went through Amarillo last week. No idea why anyone would want to live in all that wind. Guess it’s good for virus conditions cuz no one wants to go outside. LoL

I would have contacted you but I’m trying to be safe. We even disinfect the bottom of our shoes. Hate to track the virus inside and dog steps in it and runs around.
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Thanks for the reply Rome. Doesn’t seem like enough shock for huge equipment but must work.
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Tue, Apr 7, 2020 10:48 AM
Rome K/G
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Reply to Oil Slick:
Thanks for the reply Rome. Doesn’t seem like enough shock for huge equipment but must work.
Your welcome! It's not so much as "shock" but more as stabilization of the upper frame, cab and engine from side rocking.
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Tue, Apr 7, 2020 8:47 PM
janmeermans
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Reply to Rome K/G:
Your welcome! It's not so much as "shock" but more as stabilization of the upper frame, cab and engine from side rocking.
So Rome K/G

I guess Oilslick was "stumped" on this question so it only figures that you would have the answer with you being the "stump guy" on here!😊

I also see what appears to be a horizontal cylinder or "shock absorber" that would seem to cushion the truck movement as the engine goes around a curve. Any thoughts on why that is needed?

Actually, as I look at that whole design, I know that somebody somewhere knows a heck of a lot of what goes into designing a large RR engine than I do which is absolutely nothing!

JanM
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Tue, Apr 7, 2020 11:17 PM
Rome K/G
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Reply to janmeermans:
So Rome K/G

I guess Oilslick was "stumped" on this question so it only figures that you would have the answer with you being the "stump guy" on here!😊

I also see what appears to be a horizontal cylinder or "shock absorber" that would seem to cushion the truck movement as the engine goes around a curve. Any thoughts on why that is needed?

Actually, as I look at that whole design, I know that somebody somewhere knows a heck of a lot of what goes into designing a large RR engine than I do which is absolutely nothing!

JanM
Ha! funny Jan 😖mile:, That would also help with any sudden side shock or twist movement, sometimes you'll seen an old gondola car with a set of trucks that wobble like crazy going down the tracks at high speed, that's what this shock would help reduce.
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Wed, Apr 8, 2020 12:36 AM
Oil Slick
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Reply to Rome K/G:
Ha! funny Jan 😖mile:, That would also help with any sudden side shock or twist movement, sometimes you'll seen an old gondola car with a set of trucks that wobble like crazy going down the tracks at high speed, that's what this shock would help reduce.
Few more pics. I didn’t know they still had power only units without cabs. I’m a train watcher and never see them on the road. Must be only used as a switcher in the yard.
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Wed, Apr 8, 2020 8:53 PM
Rome K/G
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Reply to Oil Slick:
Few more pics. I didn’t know they still had power only units without cabs. I’m a train watcher and never see them on the road. Must be only used as a switcher in the yard.
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Hmm, yea they must use them [dummy engines] out west in the mountain ranges. Wow! that locomotive is about 55 ton heavier than a D11. No wonder it takes four 583H sidebooms to pick em up. Those are some big turbos on those engines, I wonder if they are a high volume and lower pressure turbo for the slower running engines?
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Wed, Apr 8, 2020 10:37 PM
Sasquatch
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Reply to Rome K/G:
Hmm, yea they must use them [dummy engines] out west in the mountain ranges. Wow! that locomotive is about 55 ton heavier than a D11. No wonder it takes four 583H sidebooms to pick em up. Those are some big turbos on those engines, I wonder if they are a high volume and lower pressure turbo for the slower running engines?
That cabless locomotive is typically called a "B Unit" meaning it can only be operated when DP'd to a standard locomotive with a crewed cab, which would be called the "A Unit". Very large cables are hooked up between the two (or more) units so that the trailing units operate off of the same control inputs that come back from the A unit. That B unit pictured is very likely older than the newer road engines on both ends of it, since it so closely resembles the older "Jeeps" that we commonly used for yard switching or short run turns.

Another version on that B unit is called a Slug, but unlike a B unit a Slug is shorter in height has no engine or generator so it doesn't produce its own power. It's basically used as an accessory to a standard locomotive, which transmits its electrical power back to the slug to power the slug's traction motors.

Those big road engines were fun to operate, I remember one trip where we were trying to take an empty coal unit train to western MN. Two locomotives on each end (4 total) with only one cut in for power on each end. We started having trouble not far into the trip though, every time we cut power on the lead unit the tail unit kept pushing - that was an experience lol.
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Thu, Apr 9, 2020 4:01 AM
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