adamski3119

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@DartzIRL 5 ай бұрын

That has to be ten megawatts of raw heat blasting out the top of that thing, between the electrical load and the thermal load from the engine itself.

@the_atsf_railfan2926 6 ай бұрын

Its really cool to see a new perspective of a train come through my town! Thanks! 32:00

@TimMutterer 6 ай бұрын

I remember standing up on that bridge over the yard and witnessing a few of these back in the days when I was shooting film! LOUD, yet awesome!

@gebass6479 9 ай бұрын

This was the sound of Tehachapi Loop in the mid eighties.Thirteen EMD locos at full throttle.

@amessman Жыл бұрын

Very interesting to see the radiator fans behave the way they do. I had always wondered if there was an air baffle separating the fans. Turns out there isn't. You can see, when the front fan starts, the middle fan freewheels, then reverses direction as it starts up, the rear fan behaves the same way, freewheeling in the wrong direction as air is sucked from there to the other fans. It would be more efficient to separate the fans, adding baffles directly to the radiator to make sure air is always pulled through it, and not back thru the open vents above non-running fans. I suppose that's why they start up nearly at the same time. Also interesting to see the dynamic brake fans increase speed with the engine's different throttle positions. I would've only imagined one or two fan speeds for those. I doubt their speed is directly related to the output of the generator. FANTASTIC video! So much to observe, so much to listen to. There is no sound like a turbocharged EMD two-stroke, absolutely none. You are actually hearing the gears for the turbo, and not the turbo itself. It is shaft-driven through a sprag-clutch until around notch 6 depending on actual load.

@pootispiker2866 8 ай бұрын

The grid fans are connected across parts of the braking grid, the speed of the fans is directly proportional to the voltage across the braking grid. Meaning that they are driven directly from the generator output. The same is true when actually in dynamic braking mode. As for the radiator fans, they are engineered so that fan #1 can pull air across the inside of the radiator through the other fans with the radiator shutters closed. If #2 and #3 are off, the radiator shutters stay closed to prevent the radiators from getting dirty too quickly. As soon as #2 or #3 turn on (I forget which one is first in summer mode), the shutters open and the radiator acts as you'd expect.

@beeble2003 3 ай бұрын

Are you sure that the fans are running backwards? Or is it just the rotation phasing with the camera's shutter speed?

@ronaldsummons6100 Жыл бұрын

beautiful clear views.

@SailorMoonRailfan Жыл бұрын

Discount ESU Loksound 5.0 cliche.

@TYSofficial Жыл бұрын

Listened to this the whole 9 mins straight, definitely worth it

@bradjames6748 2 жыл бұрын

Bn engines always sounded different

@haroldalexis4200 2 жыл бұрын

Whooo HOOO Listen to that EMD SD 40-2 I love the sound The sound systems in model trains sound almost close to what i'm hearing. Awesome! Yes! This gets a 5 star ⭐⭐⭐⭐⭐👋👋👋👋👋👋✅👍

@agems56 2 жыл бұрын

A standing start would have been nice!

@erniescharmer1708 2 жыл бұрын

PЯӨMӨƧM

@TemplarKnight1177 2 жыл бұрын

What happens between 6:34 - 6:43 and why? It is a drop in RPM, but is it throttling down or is the load increased so the engine can't maintain the RPM? Or something else? At any rate, it is complete eargazm.

@awaken77 2 жыл бұрын

Gorgeous EMD 16-645 engine sound! Love that

@kleetus92 3 жыл бұрын

Have you seen the one video on here where one of the dynamic brake fans loses a bearing and turns into a 100 pound frisbee? Blows right out of the brake grid and lands in the weeds after going about 100 over the locomotive!

@janeordway4841 3 жыл бұрын

The pencil pushers and Book keepers got rid of these fine units.

@paulquick8806 4 жыл бұрын

Excellent song sounds i remember when Erie Lackawanna was double track when i was a kid🍻🎵🎶Schaefer beer.

@paulquick8806 4 жыл бұрын

Excellent song sounds i remember when Erie Lackawanna was double track when i was a kid🍻🎵🎶Schaefer beer.

@bobwurth819 4 жыл бұрын

why doesn1t someone explain what is happening.

@silicon212 Жыл бұрын

The engine is being 'load tested'. Similar to a car engine on a dyno, it's loaded down and run at speed to check for issues and anomalies in various systems - such as the fuel system, cylinder balance etc. They're looking for performance issues. This unit is equipped with dynamic brakes - which is the bulge in the top of the long hood with the two fans by the exhaust outlet. It's really one big resistor grid array. Dynamic brakes are used to keep a locomotive speed under control during long descending grades, by turning the traction motors into generators and then sinking that generated electricity through that resistor grid array. The fans keep it cool and prevent things from melting. In a load test, the electrical system is configured so the main generator output is sent to that resistor grid array, thus loading the generator and by extension the engine. This is why you see those cooling fans speed up in RPM in step with the engine RPM.

@lightspeed4596 Жыл бұрын

@@silicon212 Neat! Thanks for the answer!

@JungleYT 4 жыл бұрын

*Q: So, is it on a "Treadmill" of some type or what???*

@ObamaTookMyCat 4 жыл бұрын

neutral. I believe the "load test" is just to see how much amperage the generator is producing and transfer it into useable horsepower if it was in "gear"

@andyharman3022 3 жыл бұрын

The load test takes the current of the engine-driven generator and sends it to the dynamic brake resistor banks, where it is rejected as heat. The fans on the roof cool the resistor banks.

@echo-qe4gw 4 жыл бұрын

I have run many of these in days gone by. I used to love it when we ran through tunnels.

@3006USMC 4 жыл бұрын

BEYOND BADASS !!🇺🇸

@losi5ivet29cc 4 жыл бұрын

The pure sound of raw power!

@frankmakarewicz6777 4 жыл бұрын

Personally, in my opinion, the SD-60 produces the the best low torque sound in stereo! Awesome RUMBLE, turn up the subs!

@frankmakarewicz6777 4 жыл бұрын

Nothing sounds as PowerClean & PoweLean as the EMD engine! GM mastered it!

@douro20 4 жыл бұрын

Where's the load box? In India they still use water loads to load test locomotives. They even make computer controlled water loads.

@silicon212 Жыл бұрын

The load is being sent through the dynamic brake system to the resistor grid array on the roof.

@hussinekhlalfa7275 5 жыл бұрын

Emd 16-645e3 sound ASMR

@hussinekhlalfa7275 5 жыл бұрын

🚂🚂🚃🚃🚃🚃🚃🚃🚃🚃

@soundwavs1961c 5 жыл бұрын

😢😢😢😢😢😢😢😢!!!!!!!

@vintagegirl1961 5 жыл бұрын

RIP NINE-0-NINE AND THOSE ABOARD .. :'( !!!!!

@lynardskynard2895 5 жыл бұрын

God I want to smell that

@bradhardy2629 5 жыл бұрын

In my opinion the SD 40 was the most durable locomotive in the fleet . The Gp 38s and 40s were also tough as nails. Engineer , Milwaukee/ soo . C.p 1990 - 1998 .

@krakenwoodfloorservicemcma5975 2 жыл бұрын

Most versatile too.

@Patrick-xp8bb Жыл бұрын

I totally agree 👍

@TimMutterer 6 ай бұрын

EMD's 645 V-16 is a tried and proven prime mover, ever since the mid 60's. You could say the same for the almost 40 year old 710 V-16 prime mover.

@kyorone0420 5 жыл бұрын

2 bnsf facing each other at the side.

@tungnguyenthanh5391 5 жыл бұрын

@davidkierzkowski 5 жыл бұрын

She chooches pretty good

@dalton1583 5 жыл бұрын

Sounds good

@Bobs2cents 5 жыл бұрын

What I wouldn’t give to hear the sound of those screaming EMD 645’s up close and smell that sweet diesel exhaust!!😍😍

@daniellibich1376 4 жыл бұрын

When those wonder what they would give to hear an EMD 645 in full song when those had been on the scene of a load test on a SD40-2 when they stayed on the scene to watch the radiator fans kick in.

@deanladue2327 6 жыл бұрын

I know where this yard is at, I've seen these tests done many times. They're done mostly at night. An absolute blast to watch from that bridge! You truly get the full effect!

@Shane-Singleton 6 жыл бұрын

May not be Tier 4 complaint but those SD40-2's are still amazing pullers. Nothing sounds as good as those old EMD 2-strokes

@christophermattox3972 6 жыл бұрын

I love that sound. I had a crazy dream one night about one chasing me through the house with antenna clause in notch 8. Yes I have a great sense of humor.

@kyosuke19971 6 жыл бұрын

I tried to make my sister sleep with this. She concidered this as disturbing Noice. I concidering this as the perfect sleeping melody! :D

@fiberrabit8229 6 жыл бұрын

What is a load test?

@andyharman3022 6 жыл бұрын

A test of the diesel-driven generator to see if it's making full power (voltage and amperage). The electrical current generated is dissipated by the dynamic brake resistor banks. The fans you see on the top of the locomotive are cooling the engine and dynamic brake grids.