Francis Scott Key Bridge, Baltimore Md.

[Old Navy]

Diesel fuel can last months and months without going bad. I’d be more inclined to believe water in the fuel somehow, although even diesel trucks have a separate diesel/water separator to remove the residual water from the fuel; but with extreme water in the fuel; the filter is saturated with water in mere minutes and any subsequent water will go directly to the fuel rail. Water to the fuel rail of a diesel engine is VERY bad and will result in seized engine quite quickly. And yes, I’m speaking from experience as I been a fuel systems engineer for 28 years.
Dave

Then you know that water goes to the bottom of the tank and when a tank is drained almost empty sea water is pumped in for ballast. At least that is the way it was in the old navy.

 

[dryhumor]

One things for certain. As our country continues to age, and people become more distracted by poor leadership on all levels, useless bullshit, deeper in debt, and looking for the cheap way out; no one is looking at what the long term infrastructure needs truly are.

While that bridge was passing inspection, I’m doubting anyone was actually surveying it with the mindset of: is there anything we can do to prolong the use and create a safer installation? If they had, they might have considered blocking the pylons to help mitigate any impact damage. If that was too expensive, they could have actually required a tug or two, move all ships in and out, until fully clear of critical infrastructure. That alone is a no brainer.

I’m sure the ads are coming… “If you or your loved ones were affected by the Key Bridge disaster, you may be entitled to compensation…”

 

[markT]

What actually happened? A foreign owned boat hit a bridge support ( not the bridge). 6 “new comers” died as a result of the bridge breaking apart a falling into water.

 

[NorCalMikie]

"I’m sure the ads are coming… “If you or your loved ones were affected by the Key Bridge disaster, you may be entitled to compensation…”

Brought to you by the Law firm of We Screw Them And How.
but we'll get OUR cut first.

 

[D Coots]

Are you telling me that cloud of black smoke and the rearward yaw was from a generator? There is no way I would believe that. Watch the video again, 1st page of this thread. It would take some serious power to do that.

When a 50hp electric motor starts under full load on a 400kw generator there is a noticeable amount of smoke from the load. Looks like she has 4 generators. See below. More than likely burns the same fuel as the main diesel powered unit????

 

[6BRA]

Are you telling me that cloud of black smoke and the rearward yaw was from a generator? There is no way I would believe that. Watch the video again, 1st page of this thread. It would take some serious power to do that.

In this video...where is any form of wake coming off the boat? You can see movement in impact...but nothing on the water surface. I am tempted to believe this video is manipulated. Also there are 3 moving vehicles that exit the bridge just before the boat hits. A tractor trailer and 2 cars. The other vehicles on the bridge appear to be stationary construction/emergency vehicles. Look at the speed of the vehicles exiting the bridge.

 

[ebb]

All of the Chinese container cranes that have the spy chips in them have woken up and are weaponizing all the other Chinese chips including the one in the Dali. This is just the beginning.

 

[Coyotefurharvester]

The democrats have pushed through TRILLIONS of "infrastructure" spending, starting in 2009(Obama) and continue to under Biden. Unfortunately the money continues to be funneled elsewhere, or laundered into re-election campaigns. The true agenda is far from safety,security of the country and it's citizens. Probably takes 10 years to get environmental studies completed to build a concrete protection barrier in a river.

 

[D Coots]

Censorship starts in 3.. 2....

 

[LHSmith]

And THEY still think it's a fantastic idea to turn the eastern seaboard into an obstacle course with hundreds of wind turbines. Beam me up Scottie, we're being ruled by total idjits.

 

[Bill Clifton]

If it was a fuel issue, how did they resolve in 5 to 10 seconds? Since you think it was a fuel issue. Contaminated fuel doesn't get resolved that quickly. Help me out here...

Delt with it many times, clogs filters and limits fuel flow. Engine looses power and or dies. After a few seconds or minutes will start and only run for a few seconds again until starving for fuel and dies again. Over and over because enough fuel can't get through filters. Engine may run fine for a few seconds or struggle and blow smoke, etc.

Once again not saying that's what happens but you keep asking questions how contaminated fuel can effect an engine and I'm telling you from plenty of experience how it can and does.

 

[dryhumor]

Diesels can roll black smoke when they start, but usually briefly. Then it clears up.

Adding load, rolls smoke as well, typically when it is a heavy load, or it is lugging- bogging down, or starving for air/fuel. Add excessive load, an engine or control safety can shut it all down.

Marine applications have a safety shutoff valve on the air inlet to the engines. If it closes, the engine shuts down. It requires someone to clear it manually.

 

[lawman29]

Timeline

NTSB Releases "Black Box" Timeline of Baltimore Bridge Strike

On Wednesday, the National Transportation Safety Board released an initial timeline of events in the tragic collapse of the Francis Scott Key Bridge,...

maritime-executive.com

 

[dantiff2]

Timeline

NTSB Releases "Black Box" Timeline of Baltimore Bridge Strike

On Wednesday, the National Transportation Safety Board released an initial timeline of events in the tragic collapse of the Francis Scott Key Bridge,...

maritime-executive.com

Imagine the shear amount of stress that/ those pilots amassed in those very, very short moments.

 

[dantiff2]

One engine, a bow thruster, two generators and two aux generators.

Dali is propelled by a single low-speed two-stroke crosshead diesel engine coupled to a fixed-pitch propeller. Her main engine, a 9-cylinder MAN-B&W 9S90ME-C9.2[11] unit manufactured by Hyundai Heavy Industries under license, is rated 41,480 kW (55,630 hp) at 82.5 rpm.[2] Her service speed is 22 knots (41 km/h; 25 mph).[5] For maneuvering in ports, Dali has a single 3,000 kW (4,000 hp) bow thruster. Electricity is generated onboard by two 3,840 kW (5,150 hp) and two 4,400 kW (5,900 hp) auxiliary diesel generators.[4]

I can't wrap my head around how big this main engine would have to be :O How would one cycle at 82 rpms?

 

[DShortt]

With cylinders about the size of the delivery tank on a propane truck.

 

[CJ6]

They said that the Pilots were still on board as of this morning.

 

[JFrank]

Then you know that water goes to the bottom of the tank and when a tank is drained almost empty sea water is pumped in for ballast. At least that is the way it was in the old navy.

My father told me near this exact thing, sea water is used for ballast but must be drained and the tank cleaned thoroughly.

 

[Coyotefurharvester]

GPS track setting directly for the bridge support. That would be hard to manually over ride when loaded into the computerized nav system and power fails. Especially at night when visual shoreline references from the bridge would be useless, pilots wouldn't know heading was wrong, until it was to late to slow/stop the vessel.

 

[D Coots]

With cylinders about the size of the delivery tank on a propane truck.

Gigantic stroke also.

Results are long engine life.