Damn cool video and pictures of takeoff from PPT:

And from HNL, hnlramper and sandyl0vesyou marveling at what bad shape it's in.

Talk about curvature of the earth...
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mrpippy wrote:
Talk about curvature of the earth...
FlyThiz wrote:It looks as if the center main gear is not touching the ground. As it flys passed the camera, the landing lights appear under the wheels but the mains are still planted on the runway.
a320fan wrote:Interesting, I guess no point fixing up a busted engine if able if you're just flying it to its graveyard.
soyuz wrote:Years ago I read in the tech ops forum that this is pretty normal for an A343 under light loads. The centre main gear is only there to support the fuselage under heavier takeoff weights. Not sure if that is unique to this type of aircraft or whether MD-11s also have this feature.
zeke wrote:mrpippy wrote:
Talk about curvature of the earth...
Not sure what you mean by that. The 3 engine takeoff performance is predicated on the failure of another engine, that is why they would have stopped in HNL as they would have reduced fuel load out of PPT.
The A340 can fly on just one engine.
DarkSnowyNight wrote:But no, this is not the case for the MD11. Those are just about always carrying weight. One of the easy ways to tell that is the fact that the MD11 Center Gears have brakes installed. The A343s do not.
DarkSnowyNight wrote:a320fan wrote:Interesting, I guess no point fixing up a busted engine if able if you're just flying it to its graveyard.
Very unlikely for the engines. They'll be removed upon arrival and placed into whatever storage the owner/lease holder specifies. The supply of CFM56-5Cs is miniscule as it is, so they probably won't be idle for long.soyuz wrote:Years ago I read in the tech ops forum that this is pretty normal for an A343 under light loads. The centre main gear is only there to support the fuselage under heavier takeoff weights. Not sure if that is unique to this type of aircraft or whether MD-11s also have this feature.
Indeed. At the completion of almost every flight, the center gear tires do not touch the ground. Somewhere I have a picture of this aircraft (It used to overnight at LAX quite a lot) with both my hands in the space between the tire and the ground.
And just as aside (I don't know if anyone else here has ever done this one), but it is kind of a really strange thing to change an Aircraft Tire without a jack.
But no, this is not the case for the MD11. Those are just about always carrying weight. One of the easy ways to tell that is the fact that the MD11 Center Gears have brakes installed. The A343s do not.
FatCat wrote:what a sad thing!
texdravid wrote:Sorry won’t miss them one bit. Will look forward to going back to Tahiti in their 789’s!
zeke wrote:mrpippy wrote:
Talk about curvature of the earth...
Not sure what you mean by that. The 3 engine takeoff performance is predicated on the failure of another engine, that is why they would have stopped in HNL as they would have reduced fuel load out of PPT.
The A340 can fly on just one engine.
Karlsands wrote:One engine with full fuel and load (obviously not in this case) but no , it can stay aloft barley. I wouldn’t say it could properly fly without two specially the 200 & 300
Strato2 wrote:texdravid wrote:Sorry won’t miss them one bit. Will look forward to going back to Tahiti in their 789’s!
This old A340 has nicer more spacious seating than a brand new 789.
LAX772LR wrote:FatCat wrote:what a sad thing!
In your opinion.
Personally quite happy to see the inefficient go to the wayside, and make room for the advanced.
FatCat wrote:LAX772LR wrote:FatCat wrote:what a sad thing!
In your opinion.
Personally quite happy to see the inefficient go to the wayside, and make room for the advanced.
Yes by the way it's my opinion.
But what is the footprint that building a new plane takes?
Agree a more modern plane will use less fuel to do the same job.
But the whole process of building a new plane isn't "carbon free".
It's the same thing as for old cars and brand new electric cars. The lifecycle of an electric car is everything but carbon free. And also, an electric car cannot be really eco-friendly until 100% of the materials, and the processes involving it are 100% carbon free, which obviously they aren't.
That's why I personally think that it is right, and inevitable scrapping an old plane at the structural end of its life.
Not agree though, that scrapping / putting out of service a plane that hasn't reached its end of life is an ecological choice, if this was your point.
It is surely more economically convenient, as spending money on a lease plan of a new plane makes more sense than spending slightly less money on a lease plan of an older plane.
And also, it is better to spend money (=make new investments) than keeping as cash, as you do not pay taxes on losses, as you do on earnings.
This A343 surely was at the end of its life. But take, for example, its bigger, younger brother, an A346: still has plenty of life ahead. Still an appreciated plane by the public. Also, pretty technological.
Trading and A346 for an A359, as an example, doesn't make a lot of sense, on the ecological side, in my opinion. Also doesn't on the economical side, always in my opinion.
But by the way, I am not an Accounting VP in an Airline, but in another industry, so I'm not really inside the plane's market.
Would be thrilled to learn more, BTW.
Thanks!
skipness1E wrote:Efficiency is relative for goodness sake.
skipness1E wrote:but variety is dying.
mxaxai wrote:The MD-11 can be dispatched without the center gear, though: viewtopic.php?t=1363183
Williamsb747 wrote:Do these retract or something.
Williamsb747 wrote:Because how does the plane decide whether it needs the center gear or not or is it just they weight that forces it down??
DarkSnowyNight wrote:mxaxai wrote:The MD-11 can be dispatched without the center gear, though: viewtopic.php?t=1363183
Sure. And?
A 747 can be dispatched with 3 engines if the appropriate CDLs are satisfied and relevant Ferry Permits are issued. That doesn't mean it's supposed to operate like that or that it's even remotely legal to do so on a commercial flight.
Just as an aside MD11s aren't dispatched without the center gear. It's still there, it's just pinned closed, as are the doors. I'm honestly not sure whether that's acceptable for commercial operations (the bulk of my experience is not MD11s), but it seems very unlikely. Keep in mind that any applicable CDL for this will have the aircraft significantly under Max Landing Wt as a restriction.
That's different to what happens with the A343. When dispatched, it's rare (to the point of notability) that a flight >4500mi will result in the Center Mains touching the ground upon landing. Whereas with the MD11, dispatched for normal ops will absolutely use the brakes on its Center Mains. That's the distinction I was answering earlier, FWIW.
Neat picture, btw...Williamsb747 wrote:Do these retract or something.
Unless they're locked out for MX reasons, no. I really need to find that pic, lol.Williamsb747 wrote:Because how does the plane decide whether it needs the center gear or not or is it just they weight that forces it down??
It really doesn't. The max extension on the Strut & Torque Link/Scissor Gear simply do not allow for the Tire Set to reach all the way to the ground when the center tanks are empty.
Incidentally, that flex limitation is what allows the A330 Family to get along without a center gear. For the A333, the MTOW is more than 40.000kg greater than the A343's MLW. As there's been no significant issues with the A333 resultingly, it shows that there was really never a consistent need for the 342/43's Center Gear outside of MTOW situations.
And with how close the A33Ns are getting to the 343 for MTOW, still w/o the Center Gear, I am somewhat curious as to just how necessary that ever was anyway...
mxaxai wrote:DarkSnowyNight wrote:But no, this is not the case for the MD11. Those are just about always carrying weight. One of the easy ways to tell that is the fact that the MD11 Center Gears have brakes installed. The A343s do not.
The MD-11 can be dispatched without the center gear, though: viewtopic.php?t=1363183
CHRISBA35X wrote:Sad to see her go. Lovely bird and one of the best looking schemes out there. Seems sad to me that everyone cheering her demise (which is a weird thing to do anyway) seems to be doing so on the basis that she is an Airbus, and inefficient.
Boof02671 wrote:BA flew a commercial flight when an engine failed on takeoff and continued to London on three engines.
Spacepope wrote:
DC-10-30/40 could also operate without center gear, and the JAL domestic birds never used them, though I forget if they were pinned in place or the entire gear leg was removed.
LAX772LR wrote:Boof02671 wrote:BA flew a commercial flight when an engine failed on takeoff and continued to London on three engines.
The flight was still dispatched normally, the failure occurred in operation.
IIRC, the flight didn't go all the way to LON, but landed in MAN or somewhere near it, where BA had mtx. Question the wisdom of such an operation, TBH.
L0VE2FLY wrote:Why are the engines glowing? I've never seen that on a subsonic airliner.
ikolkyo wrote:Trading an A346 for an A359 makes plenty of sense. The A346 is overweight, inefficient and simply not cost effective for airlines. There is a reason it sold very poorly and is out of production currently. While the 77W and A359 will continue to fly the skies in hundreds for years to come.
UA735WL wrote:Sorry to see these pretty blue TN birds go, I remember seeing them at LAX and thinking they were quite nice in contrast to all the UA battleship gray planes.
On another note I believe that the DC-10-30/40 and MD-11s have a lockout switch that if selected will prevent the center gear from lowering. I don't think that the gear itself has to be pinned to operate without it (although I would expect that the MEL would require the switch to be collared in the "retract" position).
Boof02671 wrote:
a320fan wrote:That first pic is stunning, looks like it has afterburners. Never seen anything like that glow from behind the engines on any commercial airliner turbofan before.
questions wrote:Why were the cabin lights on during takeoff? And why would they be on if it’s a ferry flight?
DocLightning wrote:a320fan wrote:That first pic is stunning, looks like it has afterburners. Never seen anything like that glow from behind the engines on any commercial airliner turbofan before.
The Bae-146 would do it because the engines were GTFs. But why would the glow be visible on a CFM56? The “ball” of expanding LPT stages should block the view of anything hot enough to glow.
questions wrote:Why were the cabin lights on during takeoff? And why would they be on if it’s a ferry flight?
Revelation wrote:questions wrote:Why were the cabin lights on during takeoff? And why would they be on if it’s a ferry flight?
I would think it's the same reason the crew turns on the cabin lights for landing: if there was ever a need to evacuate in a hurry as unlikely as it may seem, you are better off having all the lights on to help you find an escape route should your choices be more limited than you would like. Same idea is true even if it's just a small number of crew on board.
DocLightning wrote:a320fan wrote:That first pic is stunning, looks like it has afterburners. Never seen anything like that glow from behind the engines on any commercial airliner turbofan before.
The Bae-146 would do it because the engines were GTFs. But why would the glow be visible on a CFM56? The “ball” of expanding LPT stages should block the view of anything hot enough to glow.
DocLightning wrote:a320fan wrote:That first pic is stunning, looks like it has afterburners. Never seen anything like that glow from behind the engines on any commercial airliner turbofan before.
The Bae-146 would do it because the engines were GTFs. But why would the glow be visible on a CFM56? The “ball” of expanding LPT stages should block the view of anything hot enough to glow.