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Could A330 Use 6 Wheel Instead Of 4?  
User currently offlineAirCanada014 From Canada, joined Oct 2005, 1507 posts, RR: 0
Posted (8 years 3 months 2 days 15 hours ago) and read 5031 times:

Hello all

We all know B777 have 6 wheel boggy instead of the standard 4 wheel boggy. I was wondering could Airbus adopt the 6 wheel boggy for A330-300?

comments are appreciation please.

24 replies: All unread, jump to last
 
User currently offlineWargo7772 From United States of America, joined Jan 2006, 15 posts, RR: 0
Reply 1, posted (8 years 3 months 2 days 15 hours ago) and read 5020 times:

I'm Sure They Could But There Is A Size Difference Between The A330 And The B777 So I Don't Think It's Necessary To 6 Instead Of 4.

User currently offlineAirCanada014 From Canada, joined Oct 2005, 1507 posts, RR: 0
Reply 2, posted (8 years 3 months 2 days 15 hours ago) and read 5010 times:

I figure there would be size differ. Although they both almost the same size.
Would it look cool if A330-300 had 6 wheel boggy? I thought it would be..


User currently offlineHT From Germany, joined May 2005, 6525 posts, RR: 25
Reply 3, posted (8 years 3 months 2 days 15 hours ago) and read 5001 times:

According to A.nets database, the max. T/O weight of any A330 version is 513.000 lbs while the heaviest B777-version is rated with 752.000 lbs.
-HT



Carpe diem ! Life is too short to waste your time ! Keep in mind, that today is the first day of the rest of your life !
User currently offlineA319XFW From , joined Dec 1969, posts, RR:
Reply 4, posted (8 years 3 months 2 days 14 hours ago) and read 4982 times:

It would also be a tight squeeze for a 6 wheel bogie to fit into the landing gear bay. And having the slightly better load distribution across 6 instead of 4 wheels probably won't have that large an effect (if any at all due to the smaller size of tires?).

And the landing gear engineers have got enough work to do on the A340 Enhanced gear, A350 gear and improving various A330/A340 gears without having to deal with a complete new layout!


User currently offlineMatt72033 From United Kingdom, joined May 2005, 1617 posts, RR: 4
Reply 5, posted (8 years 3 months 2 days 14 hours ago) and read 4948 times:

Quoting AirCanada014 (Reply 2):
Would it look cool if A330-300 had 6 wheel boggy? I thought it would be..

unfortunately aircraft are not designed "to look cool"

why use 6 wheel bogies when 4 is adequate?


User currently offlineDw747400 From United States of America, joined Aug 2001, 1254 posts, RR: 1
Reply 6, posted (8 years 3 months 2 days 12 hours ago) and read 4924 times:

As mentioned above, the weight of the A330 does not require a third axle. This question did make me wonder something else, however: what will Airbus do with a HGW A350 variant should one be developed? After all, the -900 is being aimed at the 772ER. My guess would be the use of the A340 center bogie--though would that interfere with the new wingbox?


CFI--Certfied Freakin Idiot
User currently offlineHAWK21M From India, joined Jan 2001, 31573 posts, RR: 57
Reply 7, posted (8 years 3 months 2 days 9 hours ago) and read 4884 times:

Quoting AirCanada014 (Reply 2):
I figure there would be size differ. Although they both almost the same size.
Would it look cool if A330-300 had 6 wheel boggy? I thought it would be..

Look & actual weight are two different reasons.Performance matters not the outside look  Smile
regds
MEL



Think of the brighter side!
User currently offlineSna350 From Belgium, joined Dec 2005, 129 posts, RR: 0
Reply 8, posted (8 years 3 months 2 days 9 hours ago) and read 4879 times:

why put 6 wheels on a an aircraft that only needs 4, it means extra maintenance cost (tyres, brakes and so on)

Quoting Matt72033 (Reply 5):
unfortunately aircraft are not designed "to look cool"

exactly



Aircraft flown: B733, B734, B736, B737, B738, B744, B752, B763, B772, A319, A320, A321, A343, A346, Do328, CRJ7, E190
User currently offlineSeanp11 From United States of America, joined Jan 2006, 290 posts, RR: 0
Reply 9, posted (8 years 3 months 2 days 7 hours ago) and read 4863 times:

If airliners were designed to "look cool" to a.netters, then the 777 would be a T-tail three holer with winglets. Efficiency is more important than looks. Its only secondary that some efficient designs look great.

User currently offlineEconoBoy From United Kingdom, joined Mar 2004, 157 posts, RR: 0
Reply 10, posted (8 years 3 months 1 day 2 hours ago) and read 4712 times:

In reponse to Dw747400 (reply 46):

The Airbus 350 won’t be using a centre bogie, as used on the330/340.Using a centre bogie means that there is less space to stow the main (wing mounted) gear, so it is necessary to design the main gear legs to shorten as they are retracted. Having no centre bogie bay means the shortening mechanism can be eliminated, improving reliability and maintenance requirements, and it also means there is more space available to fit larger wheels and tyres to the main gear if needed.


User currently offlineHAWK21M From India, joined Jan 2001, 31573 posts, RR: 57
Reply 11, posted (8 years 3 months 20 hours ago) and read 4665 times:

Quoting EconoBoy (Reply 10):
The Airbus 350 won’t be using a centre bogie, as used on the330/340

Who is the Manufacture of the LG for the A350.
regds
MEL



Think of the brighter side!
User currently offlineA319XFW From , joined Dec 1969, posts, RR:
Reply 12, posted (8 years 3 months 19 hours ago) and read 4662 times:

Quoting HAWK21M (Reply 11):
Who is the Manufacture of the LG for the A350.

MLG is Messier Dowty. NLG hasn't been decided yet but is in process of being done.


User currently offlineDw747400 From United States of America, joined Aug 2001, 1254 posts, RR: 1
Reply 13, posted (8 years 3 months 19 hours ago) and read 4651 times:

Quoting EconoBoy (Reply 10):

I know there is no center body gear on the current A350 proposals, but was wondering if in the future Airbus would consider a HGW version of the A350 to extend range and payload (this seems possible as the new engines mature to higher power ratings). These modifications could push it closer to mid-range 777s in terms of takeoff weight.



CFI--Certfied Freakin Idiot
User currently offline747400sp From United States of America, joined Aug 2003, 3301 posts, RR: 2
Reply 14, posted (3 years 11 months 3 weeks 2 days 3 hours ago) and read 3999 times:

Quoting Dw747400 (Reply 6):
As mentioned above, the weight of the A330 does not require a third axle. This question did make me wonder something else, however: what will Airbus do with a HGW A350 variant should one be developed? After all, the -900 is being aimed at the 772ER. My guess would be the use of the A340 center bogie--though would that interfere with the new wingbox?

The 900R is going to have 6 wheel bogie like the 1000.


User currently offlinethegeek From Australia, joined Nov 2007, 2638 posts, RR: 0
Reply 15, posted (3 years 11 months 3 weeks 1 day 22 hours ago) and read 3775 times:

Quoting AirCanada014 (Thread starter):
We all know B777 have 6 wheel boggy instead of the standard 4 wheel boggy. I was wondering could Airbus adopt the 6 wheel boggy for A330-300?

Sure. But why would you want to? If you wanted to significantly up the MTOW of the A333, it would be far easier to adapt the centre leg from the A340.


User currently offlineTristarsteve From Sweden, joined Nov 2005, 3930 posts, RR: 34
Reply 16, posted (3 years 11 months 3 weeks 1 day 15 hours ago) and read 3628 times:

Quoting thegeek (Reply 15):
If you wanted to significantly up the MTOW of the A333, it would be far easier to adapt the centre leg from the A340.

Not that much adaptation needed. The A330 has the centre gear housing fitted already, it's left empty.
I am sure it would be easy to fit one if necessary.


User currently offline747400sp From United States of America, joined Aug 2003, 3301 posts, RR: 2
Reply 17, posted (3 years 11 months 3 weeks 1 day 2 hours ago) and read 3400 times:

Quoting thegeek (Reply 15):
Sure. But why would you want to? If you wanted to significantly up the MTOW of the A333, it would be far easier to adapt the centre leg from the A340.

[quote=Tristarsteve,reply=16]Not that much adaptation needed. The A330 has the centre gear housing fitted already, it's left empty.
I am sure it would be easy to fit one if necessary.





In 2000, remember Airbus was looking at a long range version of the A333, and it was to have a center wheel bongie.


User currently offlineDH106 From United Kingdom, joined Jun 2005, 623 posts, RR: 1
Reply 18, posted (3 years 11 months 3 weeks 23 hours ago) and read 3236 times:
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Quoting EconoBoy (Reply 10):
The Airbus 350 won’t be using a centre bogie, as used on the330/340.Using a centre bogie means that there is less space to stow the main (wing mounted) gear, so it is necessary to design the main gear legs to shorten as they are retracted. Having no centre bogie bay means the shortening mechanism can be eliminated, improving reliability and maintenance requirements, and it also means there is more space available to fit larger wheels and tyres to the main gear if needed.

Why wouldn't they just be designed from the outset to swing into the wells without shortening, wherever the wells are inboard or outboard ? Shortening legs aren't a requirement to hit wells on the extremity of the fuselage.



...I watched c-beams glitter in the dark near the Tanhauser Gate....
User currently offlinedw747400 From United States of America, joined Aug 2001, 1254 posts, RR: 1
Reply 19, posted (3 years 11 months 3 weeks 21 hours ago) and read 3199 times:

Quoting 747400sp (Reply 14):
The 900R is going to have 6 wheel bogie like the 1000.

Do you spend a lot of time looking for four year old threads to comment on? Obviously a LOT has changed with the 350 since 2006!.



CFI--Certfied Freakin Idiot
User currently offlinethegeek From Australia, joined Nov 2007, 2638 posts, RR: 0
Reply 20, posted (3 years 11 months 3 weeks 16 hours ago) and read 3146 times:

Quoting 747400sp (Reply 17):
In 2000, remember Airbus was looking at a long range version of the A333, and it was to have a center wheel bongie.

I hadn't heard about this before. Why didn't they build this beast: Lack of a suitable engine, or did they feel they couldn't compete with the 77E?


User currently offlineJulian773 From Australia, joined Aug 2009, 115 posts, RR: 0
Reply 21, posted (3 years 11 months 2 weeks 3 days 10 hours ago) and read 2676 times:

But why did US put a 6 wheel boggy on their 757? They had the 4 wheel boggy on them before and a 757 wouldn´t really need 6 or am I wrong?

User currently offlineKit777 From United Kingdom, joined Oct 2009, 93 posts, RR: 0
Reply 22, posted (3 years 11 months 2 weeks 3 days 1 hour ago) and read 2569 times:

Quoting Julian773 (Reply 21):

As far as I know - no 757 has ever had a six wheel bogey, only ever four.

Thanks


User currently offlineJulian773 From Australia, joined Aug 2009, 115 posts, RR: 0
Reply 23, posted (3 years 11 months 2 weeks 3 days ago) and read 2550 times:

Quoting Kit777 (Reply 22):
As far as I know - no 757 has ever had a six wheel bogey, only ever four.
http://www.airliners.net/photo/US-Ai...d=0be99978edc816e91f4311397d3c1c1b

don´t know why this was.Looks like a test or something


Julian


User currently offlineUKA330 From United Kingdom, joined Nov 2004, 60 posts, RR: 0
Reply 24, posted (3 years 11 months 2 weeks 3 days ago) and read 2548 times:

Quoting Julian773 (Reply 23):
As far as I know - no 757 has ever had a six wheel bogey, only ever four.
http://www.airliners.net/photo/US-Ai...d=0be99978edc816e91f4311397d3c1c1b

don´t know why this was.Looks like a test or something


Julian

It does not have 6, its just an illusion. Its just the angle of the shot showing up the front 2 wheels of the right MLG. But i admit it does look like it has 6.

Ross


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