a380900
Posts: 801
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A380: Landing Gear Retraction

Sun May 08, 2005 5:24 am

This picture shows the retraction of the main landing gear.

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Click here for bigger photo!

Photo © French Frogs AirSlides


During gear retraction, It looks like the 6 wheels gear door open, then a small part of them fold and they close with an opening this time. Is that so? Is it only a feature of the A380 or do other airliners have the same kind of retraction?

Here are the picture with gear extended:

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Photo © Johan Menten



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Photo © Anne Deus

 
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Starlionblue
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RE: A380: Landing Gear Retraction

Sun May 08, 2005 9:22 pm

The 747 is pretty similar for the body gear.
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo
 
brons2
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RE: A380: Landing Gear Retraction

Sun May 08, 2005 9:30 pm

who's the landing gear subcontractor on the A380? Goodrich?
Firings, if well done, are good for employee morale.
 
bill142
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RE: A380: Landing Gear Retraction

Sun May 08, 2005 9:43 pm

Quoting Brons2 (Reply 2):
who's the landing gear subcontractor on the A380? Goodrich?

I believe so. The tyres are Michelin tyres which are similar to those developed for the Concorde.
 
air2gxs
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RE: A380: Landing Gear Retraction

Sun May 08, 2005 9:43 pm

The subcontractor is probably Messier.

The door your talking about is probably a fixed door attached to the body gear. I couldn't tell from the pictures, but it appears that it would attach to the front of the gear and "close" as the gear retracts.
 
Mark_D.
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RE: A380: Landing Gear Retraction

Mon May 09, 2005 11:04 am

main gear:
http://www.flightdailynews.com/singapore2004/02_24/hall/a380.shtm

actuation systems:
biz.yahoo.com/pz/040719/60972.html



This is kind of an interesting pdf:

http://www.casi.ca/CD-ROMs/AGM/2003/papers/251.pdf
 
Pihero
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Joined: Mon Jan 31, 2005 5:11 am

RE: A380: Landing Gear Retraction

Mon May 09, 2005 7:55 pm

Mark_D ,

Thanks for this link which shows a superb piece of engineering .

Regards
Contrail designer
 
monteycarlos
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RE: A380: Landing Gear Retraction

Mon May 09, 2005 8:00 pm

Quoting Bill142 (Reply 3):
The tyres are Michelin tyres which are similar to those developed for the Concorde.

Thats probably a good thing because otherwise the A380 might not qualify any better than 7th for the next GP!
It's a beautiful night to fly like a phoenix...
 
Glom
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RE: A380: Landing Gear Retraction

Mon May 09, 2005 8:23 pm

Any pictures with the gear full retracted?
 
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HAWK21M
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RE: A380: Landing Gear Retraction

Mon May 09, 2005 8:52 pm

GOODRICH
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
CPH-R
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RE: A380: Landing Gear Retraction

Mon May 09, 2005 9:02 pm

Discovery had a 2 hour documentary on the A380 last night, which included a bit on Goodrich & the test they did to see if the landing gear would withstand the forces on impact. Quite interesting, really.

Of course, as a lead up, they showed the low res clip of a KE 747 doing a horrible landing at Kai Tak, to point out the forces that may act upon a landing gear.
 
PanHAM
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RE: A380: Landing Gear Retraction

Mon May 09, 2005 9:09 pm

Quoting Monteycarlos (Reply 7):

No worries, they haven't painted it red.  Wink
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crewrest
Posts: 89
Joined: Fri Aug 31, 2001 12:14 am

RE: A380: Landing Gear Retraction

Mon May 09, 2005 10:08 pm

Quoting Monteycarlos (Reply 7):
Thats probably a good thing because otherwise the A380 might not qualify any better than 7th for the next GP!

LOL
 
jush
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RE: A380: Landing Gear Retraction

Mon May 09, 2005 10:47 pm

If you'd like to see how it retracts. If you follow the www.airbus.com page to the videos of the maiden flight you see a complete retraction scene....

Nice to see... you should check it out though

Matt
There is one problem with airbus. Though their products are engineering marvels they lack passion, completely.
 
squirrel83
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RE: A380: Landing Gear Retraction

Mon May 09, 2005 11:03 pm

Quoting Brons2 (Reply 2):
who's the landing gear subcontractor on the A380? Goodrich?

In Toulouse, France on April 27, 2005 the Airbus A380 took to the skies for the first time. Goodrich technology was on board for this revolutionary aircraft's test flight.

Goodrich is one of the world's largest suppliers of landing systems and provides both the main body and wing landing gear for the A380. Though Goodrich was already a major supplier for Airbus, it was the first time the company had been selected to provide landing gear for an Airbus aircraft. The components for the landing gear system are produced by Goodrich’s Landing Gear division and involve manufacturing facilities at Oakville, Ontario, Canada; Cleveland, Ohio; Tullahoma, Tennessee; and Krosno, Poland. The final gear integration takes place at the Goodrich facility in Toulouse, France before delivery to Airbus’ final assembly line.

Along with providing state of the art landing gear for the A380, Goodrich is also launching the next generation of evacuation systems with its A380 work package. Goodrich will supply 16 evacuation slide systems per aircraft, which are designed to be 10% lighter than current slides while still meeting all performance requirements.

Goodrich is also supplying innovative High-Density Discharge (HID) and LED-based exterior lighting, award-winning variable frequency technology for the aircraft’s power generation system (through its Aerolec joint venture with Thales) and flight controls that take advantage of the latest power by wire technology. And Goodrich will provide the primary and standby air data systems. The primary air data system will feature SmartProbeTM, another new Goodrich technology, which uses innovative multi-function sensing probes to aid reliability.

Goodrich is also providing an automatic ice detection system, and will bring its experience in aircraft materials and structures to bear in the development of the aircraft’s cargo system and with several structural components. Most recently, Goodrich was selected by Airbus to provide the aircraft’s cabin attendant and cockpit occupancy seats.

http://www.goodrich.com/Feature/SingleStory/0,1285,63,00.html
A346, 7E7, 747, 777, Sonic Cruiser
 
cgagn
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RE: A380: Landing Gear Retraction

Tue May 10, 2005 5:15 am

What would we do without KE to show us how not to land at kai-tak  Wink
Widebodies flown on:A330-300,A340-300,A380-800,747-400,767-200ER,767-300ER,777-200A,777-200ER,777-200LR,777-300ER,787-9
 
Klaus
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RE: A380: Landing Gear Retraction

Tue May 10, 2005 9:58 am

The outer body gear doors do indeed have a sub-segment each which folds out only when the gear is retracted. When it is extended this extra panel (which is hinged on the main door panel) is folded away to leave an opening just for the pylon.

The option to mechanically link the cover panel to the strut does not exist with the retraction mechanism used; The fold-away panel probably reduces drag and noise as well vs. a panel sticking out together with the extended pylon.
 
Klaus
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RE: A380: Landing Gear Retraction

Tue May 10, 2005 10:35 am

By the way, this thread is related: Airliners.net Tech Ops: A380 Undercarriage
 
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HAWK21M
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RE: A380: Landing Gear Retraction

Tue May 10, 2005 6:11 pm

Quoting Jush (Reply 13):
If you'd like to see how it retracts. If you follow the www.airbus.com page to the videos of the maiden flight you see a complete retraction scene....

The Video of the A380 sequence demonstrates that the Retraction cycle is very slow approx 16-17 secs.Is this normal.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
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Starlionblue
Posts: 17208
Joined: Fri Feb 27, 2004 9:54 pm

RE: A380: Landing Gear Retraction

Tue May 10, 2005 10:38 pm

Quoting HAWK21M (Reply 18):
The Video of the A380 sequence demonstrates that the Retraction cycle is very slow approx 16-17 secs.Is this normal.

Faster than a DC-3 Big grin
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo

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