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Hudson Ditching Left Engine Running at 35%

pilotyip

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Air Transport



DATE:23/01/09
SOURCE:Flightglobal.com

Hudson A320: Partial engine power aided textbook ditching


Sources close to the on-going investigation of US Airways Flight 1549 say that the Airbus A320's number 1 (left) engine continued to run at approximately 35% fan speed (N1) during the three-minute window between striking birds at 3,200ft and ditching in the Hudson River on 15 January. All 150 passengers and five crew safely exited the Charlotte-bound aircraft in the river, aided by nearby ferry boat crews in a spectacle that captured global interest and fueled renewed admiration for airline training and professionalism. Though limited, the left engine's speed would have been adequate to keep the aircraft's generators and hydraulic systems on-line, providing "normal" flight control laws and communications as well as giving pilots ability to deploy flaps and slats, elements that proved critical to performing a low-speed water landing. To maintain altitude on a single engine however, experts say the powerplant would have had to been running at 70% N1 or more. Investigators planned to retrieve the left engine, which broke from the aircraft during the ditching, from the river bottom Friday or Saturday to perform an inspection. Flight International has learned that the aircraft touched down at 125-130kt airspeed with flaps and slats both in the "2" position, or midpoint, position. An A320 normally lands at 120-125kt with fully deployed flaps and slats.
 

Bluestreak

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That should have been enough thrust in order for "sully" to make it to TEB or back to LGA.

Hey Brownstain,you obviously have a comprehension problem,so try this:

"Sources close to the on-going investigation of US Airways Flight 1549 say that the Airbus A320's number 1 (left) engine continued to run at approximately 35% fan speed (N1) during the three-minute window between striking birds at 3,200ft and ditching in the Hudson River on 15 January. "

See,N1 is the big fan you see inside the engine .You can see it from the gate while you're waiting for your flight to see your boyfriend.

"To maintain altitude on a single engine however, experts say the powerplant would have had to been running at 70% N1 or more."


See,you forgot about this while on MSFS.Now go fix yourself a nice vaseline and cucumber sandwich,hmmm kay ?
 

Amish RakeFight

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That should have been enough thrust in order for "sully" to make it to TEB or back to LGA.

Whaa?

Browntothebone is right. Old man Sully could've glided into TEB instead of showboating it on the Hudson to impress Lorrie. Me and my ERU and GIA buddies all pulled off the "SULLY.FIVE" DP on MSFS with no problems. Afterwards, we all hi-fived each other and headed to the mall in our company uniforms. Tal;k about a blast. All the chicks were non-stop with the hero questions. We all had a very GOOD night. ;)
 

Sy-bill

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Idle N1 is at about 22%. So that extra 13% N1 was only good to keep the systems going which was a good thing.
 

Browntothebone

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Hey Brownstain,you obviously have a comprehension problem,so try this:

"Sources close to the on-going investigation of US Airways Flight 1549 say that the Airbus A320's number 1 (left) engine continued to run at approximately 35% fan speed (N1) during the three-minute window between striking birds at 3,200ft and ditching in the Hudson River on 15 January. "

See,N1 is the big fan you see inside the engine .You can see it from the gate while you're waiting for your flight to see your boyfriend.

"To maintain altitude on a single engine however, experts say the powerplant would have had to been running at 70% N1 or more."


See,you forgot about this while on MSFS.Now go fix yourself a nice vaseline and cucumber sandwich,hmmm kay ?



I said NOTHING about maintaining altitude. I said it may have been enough residual thrust for sully to extend his glide in order to make it to TEB or LGA.
 

Abernathy

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I said NOTHING about maintaining altitude. I said it may have been enough residual thrust for sully to extend his glide in order to make it to TEB or LGA.

Yeah, f*** that guy. I bet you could have greased it on at TEB or LGA, no sweat.
 
Last edited:

instructordude

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Very interesting update. Makes you wonder if something may have been botched.
 

say again

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Haha, the brilliance of some on here is amazing!!!
 

Pocono Pilot

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That is very interesting.

I seriously was wondering why he didn't go for runway 11 at Newark. If you look where he put it down, I think he easily could have made 11 in Newark.

Especially if he had engine thrust on one engine.

Heck, he could even pull a CAL, and land on the taxiway for 11 in EWR. It is slightly closer than the runway. LOL

Very interesting.
 

Browntothebone

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That is very interesting.

I seriously was wondering why he didn't go for runway 11 at Newark. If you look where he put it down, I think he easily could have made 11 in Newark.

Especially if he had engine thrust on one engine.

Heck, he could even pull a CAL, and land on the taxiway for 11 in EWR. It is slightly closer than the runway. LOL

Very interesting.


I agree.
 

amcnd

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That should have been enough thrust in order for "sully" to make it to TEB or back to LGA.


A high bypass engine make all its thrust in the last 20% N1. 35 % would not even get the thing taxiing on one engine. He was smart to leave it running for hydraulics. And less flaps on landing was smart also!! he did a great job for only having 3 minutes!!
 

Pocono Pilot

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A high bypass engine make all its thrust in the last 20% N1. 35 % would not even get the thing taxiing on one engine.


Um, ever hear of breakaway thrust? Or is that just something jet pilots know about!LOL
 

Sandhawk

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Isn't it interesting how "Brown-on-his-bone", "Instructor-Doosh", and "Poke-her-hole Pylit" all post back-to-back...........

:confused:
 
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