Deltabravo1123
Topic Author
Posts: 258
Joined: Sat Jul 12, 2014 3:32 am

Aircraft Family Variants & Different Landing Gear

Tue May 24, 2016 4:23 am

...sorry couldn't fit "Landing Gears" in the topic line.

Anyways, just saw the pictures of the first A35J and I didn't know until now that this variant of the A350 family has the triple bogie-trucks on the main landing gears. It got me thinking...what other aircraft families have variants with different landing gear assemblies? The two that come to mind for me are the DC-10 and the unique A320s, which have the double bogies. I'm surely missing some others...
 
User avatar
Francoflier
Posts: 4912
Joined: Wed Oct 31, 2001 12:27 pm

Aircraft Family Variants & Different Landing Gear

Tue May 24, 2016 4:35 am

Variants of the 747 have different variations of tyre size and rating/pressure, but the gear architecture is obviously the same.

The 77W has a slightly different landing gear from the lighter versions, mostly due to the addition of the semi-levered mechanism actuator. But again, same architecture.

You'd have to go back some way to find examples of different gear design on the same aircraft, and all those would be evolutionary changes, not concurrent designs based on versions.

The B-36, for instance, started out with a typical WWII era landing gear design with a single (massive) tyre on each side before it changed to a bogie on the production version.

Otherwise... Beech King Air?
I'll do my own airline. With Blackjack. And hookers. In fact, forget the airline.
 
User avatar
Scooter01
Posts: 1187
Joined: Tue Nov 28, 2006 11:06 pm

Aircraft Family Variants & Different Landing Gear

Tue May 24, 2016 6:52 am

The Lockheed F-104 Starfighter family had forward retracting nosegear on the singleseaters and rearward retracting on the twoseaters.


Scooter01  
There is always a good reason to watch airplanes
 
prebennorholm
Posts: 6995
Joined: Tue Mar 21, 2000 6:25 am

Aircraft Family Variants & Different Landing Gear

Tue May 24, 2016 11:47 pm

Airbus 340 center landing gear.

Two wheels on -200/-300, four wheels on -500/-600.
Always keep your number of landings equal to your number of take-offs
 
Viscount724
Posts: 19316
Joined: Thu Oct 12, 2006 7:32 pm

Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 2:47 am

Quoting Francoflier (Reply 1):
The B-36, for instance, started out with a typical WWII era landing gear design with a single (massive) tyre on each side before it changed to a bogie on the production version.

Also the Comet 1 prototype had a large single-wheel main gear, which changed to a 4-wheel bogie on the production aircraft.

I believe those changes were the result in improvements in brake design.


View Large View Medium
Click here for bigger photo!

Photo © RAScholefield Collection

Quoting Francoflier (Reply 1):
Variants of the 747 have different variations of tyre size and rating/pressure, but the gear architecture is obviously the same.

The 720 and 720B also have slightly smaller wheels/tires than the 707.
 
JohnJ
Posts: 1381
Joined: Tue Jun 27, 2000 5:01 am

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 3:58 am

767-400 and 737 MAX.
 
ACDC8
Posts: 7798
Joined: Thu Mar 10, 2005 6:56 pm

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 4:05 am

Quoting JohnJ (Reply 5):
767-400 and 737 MAX.

What are the differences in those?
A Grumpy German Is A Sauerkraut
 
AOMlover
Posts: 1200
Joined: Sun Jul 22, 2001 6:03 pm

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 4:36 am

For all the 350 variations the nose landing gear is supplied by Liebherr.

For the main landing gear it's a different story:
A350-900: Messier Bugatti Dowty (Safran)
A350-1000: Goodrich (UTAS).

From what I heard Airbus decided to go with Goodrich for the -1000 NLG as Messier has no experience in designing tri-axle bogies.
 
BAeRJ100
Posts: 398
Joined: Sun Nov 20, 2011 9:49 am

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 4:59 am

Quoting ACDC8 (Reply 6):
What are the differences in those?

The 737 MAX has a longer nose gear due to the larger engines. The 767-400's is also taller than previous models, but I'm not sure if it's only the NLG or MLG as well.
B737/738/739/744ER/752/753/763/77L/77W/788/789
A223/320/321/332/333/346/359/388
MD82/MD88/717/F100/RJ85/RJ100/146-100/200/300
E175/190/CRJ700/900
 
User avatar
77west
Posts: 943
Joined: Sat Jun 13, 2009 11:52 am

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 5:29 am

Quoting BAeRJ100 (Reply 8):
but I'm not sure if it's only the NLG or MLG as well.

The 767-400 uses the 777-200 wheels, tires and brakes, only 4 of them instead of 6 per leg.
77West - AW109S - BE90 - JS31 - B1900 - Q300 - ATR72 - DC9-30 - MD80 - B733 - A320 - B738 - A300-B4 - B773 - B77W
 
User avatar
BartSimpson
Posts: 614
Joined: Sat Mar 05, 2016 5:01 pm

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 5:37 am

Quoting Viscount724 (Reply 4):

The 720 and 720B also have slightly smaller wheels/tires than the 707


Didn't the 707 also have two different nose gear options? Can't find any pictures right now.
 
ACDC8
Posts: 7798
Joined: Thu Mar 10, 2005 6:56 pm

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 5:41 am

Quoting BAeRJ100 (Reply 8):
The 737 MAX has a longer nose gear due to the larger engines. The 767-400's is also taller than previous models, but I'm not sure if it's only the NLG or MLG as well.

Ok cool - thanks, didn't know that.
A Grumpy German Is A Sauerkraut
 
User avatar
BartSimpson
Posts: 614
Joined: Sat Mar 05, 2016 5:01 pm

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 7:33 am

Quoting BartSimpson (Reply 10):
Didn't the 707 also have two different nose gear options?

Here we go:


View Large View Medium
Click here for bigger photo!

Photo © Phil Debski
View Large View Medium
Click here for bigger photo!

Photo © Fergal Goodman



At least the gear door configuration is different.
 
User avatar
RRTrent
Posts: 460
Joined: Sat Aug 29, 2015 8:12 am

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 9:25 am

A330 pax and F versions. The hump on the bottom of the freighter is so the aircraft is level for loading as the original A330 uses the same nose gear at the A300, which is not as tall.


View Large View Medium
Click here for bigger photo!

Photo © Yin ZHANG


View Large View Medium
Click here for bigger photo!

Photo © Mehmet Mustafa Celik - SpotTR



[Edited 2016-05-25 02:28:04]
 
User avatar
macsog6
Posts: 242
Joined: Wed Jan 27, 2010 6:25 pm

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 5:43 pm

Quoting Francoflier (Reply 1):
The B-36, for instance, started out with a typical WWII era landing gear design with a single (massive) tyre on each side before it changed to a bogie on the production version.

While I cannot locate the picture right now, an experimental version of the B-36 actually replaced the wheel and tire system with a tracked mechanism, rather sort of like a miniature tank tread.This was on both the mains and the nose. As I recall, it was tested successfully but was obviously never put into production.
Sixty Plus Years of Flying! "I fly because it releases my mind from the tyranny of petty things." - Saint Ex
 
Alias1024
Posts: 2547
Joined: Mon Oct 25, 2004 11:13 am

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 10:57 pm

The CRJ 100/200 landing gear is different from the 700/900.

The 700/900 nose gear is a little beefier and has pads in the wheel well to slow tire rotation. Also, the nose gear doors are mechanically linked to the gear, where in the 100/200 they are hydraulically actuated. A good safety change as some ground personnel have been maimed when the hydraulics were unexpectedly switched on.

The 100/200 main gear is a trailing link design. The 700/900 are straight shock struts, much taller, and have much larger tires

I'm not sure on the design of the CRJ-1000, but from a distance it looks to be similar to the 700/900 design.
It is a mistake to think you can solve any major problems with just potatoes.
 
PEK777
Posts: 418
Joined: Thu Jun 28, 2012 12:56 pm

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 11:11 pm

Quoting ACDC8 (Reply 6):
What are the differences in those?

The landing gear on the 767-200/300 sold, the one on the 767-400 didn't.
 
User avatar
rj968
Posts: 120
Joined: Wed Aug 06, 2014 3:57 am

RE: Aircraft Family Variants & Different Landing Gear

Wed May 25, 2016 11:30 pm

Quoting macsog6 (Reply 14):

Google "B-36 landing gear images" and you will see the tracks as well as the huge original single tires

RJ
 
User avatar
NWAROOSTER
Posts: 1240
Joined: Mon Feb 14, 2005 2:29 pm

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 12:40 am

Air India's early A320s had four wheel main gear boogies while all the other A320s produced had two wheel boogies.
In fact the tire is on the A320 main gear is the same as the 727.   
Procrastination Is The Theft Of Time.......
 
Viscount724
Posts: 19316
Joined: Thu Oct 12, 2006 7:32 pm

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 1:13 am

Quoting BartSimpson (Reply 12):
Quoting BartSimpson (Reply 10):
Didn't the 707 also have two different nose gear options?

Here we go:

Don't believe they were options. I think the door design was changed at some point during production and was then used on all later aircraft
 
User avatar
Devilfish
Posts: 6569
Joined: Tue Jan 24, 2006 7:52 am

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 1:49 am

Quoting 77west (Reply 9):
The 767-400 uses the 777-200 wheels, tires and brakes, only 4 of them instead of 6 per leg.

No person to indicate scale for the 767-200 gear but it's 18" shorter than the 767-400ER's.....

http://m1.i.pbase.com/u17/aqexplorers/large/42243291.DSCF8874.jpg


https://cryptome.org/info/wtc-punch/pict58.jpg
"Everyone is entitled to my opinion." - Garfield
 
LH707330
Posts: 2225
Joined: Fri Jun 15, 2012 11:27 pm

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 2:35 am

Quoting BartSimpson (Reply 10):
Quoting Viscount724 (Reply 4):
The 720 and 720B also have slightly smaller wheels/tires than the 707
Didn't the 707 also have two different nose gear options? Can't find any pictures right now.
Quoting BartSimpson (Reply 12):
At least the gear door configuration is different.
Quoting Viscount724 (Reply 19):
Don't believe they were options. I think the door design was changed at some point during production and was then used on all later aircraft

The gear legs were all the same, but the doors were changed from the trailing spade to the barn doors in 1963 when they introduced the 707-320C. Some airlines also retrofitted their older planes with the new doors for fleet commonality.

Quoting PEK777 (Reply 16):
The landing gear on the 767-200/300 sold, the one on the 767-400 didn't.

Clever...
 
bohica
Posts: 2414
Joined: Tue Feb 10, 2004 3:21 pm

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 3:01 am

The Tupolev TU-144 prototype had the main landing gears attached to the wings just outside of the engine nacelles. The production version had the MLG attached to the nacelles. I didn't see any pictures of the prototype in the database but you can google "TU-144 prototype" and you can compare it to pictures in the database.
 
User avatar
77west
Posts: 943
Joined: Sat Jun 13, 2009 11:52 am

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 3:31 am

Quoting Devilfish (Reply 20):

No person to indicate scale for the 767-200 gear but it's 18" shorter than the 767-400ER's.....
http://www.boeing.com/commercial/aer...zine/aero_03/textonly/ps01txt.html

About midway down, in the section titled rotation capability. 777, not 767-200
77West - AW109S - BE90 - JS31 - B1900 - Q300 - ATR72 - DC9-30 - MD80 - B733 - A320 - B738 - A300-B4 - B773 - B77W
 
User avatar
bluefltspecial
Posts: 527
Joined: Fri Sep 20, 2013 6:27 pm

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 8:48 am

not to hijack the thread, but I always found it odd the the A321 was never given a double bogie like the 757. It always looked to me like the A321 was on the verge of a tail tip. Was there an option for the A321 to have that?
Save a horse, ride a Fly-boy....
 
User avatar
AirIndia
Posts: 1258
Joined: Sun Jan 14, 2001 2:43 am

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 9:01 am

The A340 had different versions of the central landing gears.

A340-200 and 300 have a single bogie

A342
View Large View Medium
Click here for bigger photo!

Photo © Pascal Maillot


A343
View Large View Medium
Click here for bigger photo!

Photo © Andrea Giribuola



A340-500/600 have double bogies

A345
View Large View Medium
Click here for bigger photo!

Photo © Christopher Desantis - NYC Spotting Team


A346
View Large View Medium
Click here for bigger photo!

Photo © Paul Guinea

 
User avatar
RRTrent
Posts: 460
Joined: Sat Aug 29, 2015 8:12 am

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 9:01 am

Quoting bluefltspecial (Reply 24):
Was there an option for the A321 to have that

I'm open to correction, but I believe a double bogey was an option on all A32X models until recently. As mentioned above, some early examples operating in India had them.
 
User avatar
KarelXWB
Moderator
Posts: 26968
Joined: Sun Jul 15, 2012 6:13 pm

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 10:15 am

Quoting AOMlover (Reply 7):
From what I heard Airbus decided to go with Goodrich for the -1000 NLG as Messier has no experience in designing tri-axle bogies.

In addition, Goodrich is also the supplier of the 777 main landing gear. It was a safe bet to let Goodrich develop the A350-1000 MLG.
What we leave behind is not as important as how we've lived.
 
User avatar
77west
Posts: 943
Joined: Sat Jun 13, 2009 11:52 am

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 11:39 am

Quoting KarelXWB (Reply 27):
Quoting AOMlover (Reply 7):From what I heard Airbus decided to go with Goodrich for the -1000 NLG as Messier has no experience in designing tri-axle bogies.
In addition, Goodrich is also the supplier of the 777 main landing gear. It was a safe bet to let Goodrich develop the A350-1000 MLG.

Makes sense. I assume they are also the supplier of the A380 tri-axle bogies?
77West - AW109S - BE90 - JS31 - B1900 - Q300 - ATR72 - DC9-30 - MD80 - B733 - A320 - B738 - A300-B4 - B773 - B77W
 
User avatar
Devilfish
Posts: 6569
Joined: Tue Jan 24, 2006 7:52 am

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 2:26 pm

Quoting 77west (Reply 23):
http://www.boeing.com/commercial/aer...zine/aero_03/textonly/ps01txt.html

About midway down, in the section titled rotation capability. 777, not 767-200

Please read the post again. I thought it was already abundantly clear with all the references upthread that the 767-400ER's landing gear came from the 777.   
"Everyone is entitled to my opinion." - Garfield
 
User avatar
zeke
Posts: 14053
Joined: Thu Dec 14, 2006 1:42 pm

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 2:33 pm

Surprised the A320 has not got a mention yet


View Large View Medium
Click here for bigger photo!

Photo © M Radzi Desa
View Large View Medium
Click here for bigger photo!

Photo © Mark Paul Brockdorff

Human rights lawyers are "ambulance chasers of the very worst kind.'" - Sky News
 
User avatar
RRTrent
Posts: 460
Joined: Sat Aug 29, 2015 8:12 am

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 3:11 pm

Quoting zeke (Reply 30):

Its has several mentions, including the OP  
 
User avatar
zeke
Posts: 14053
Joined: Thu Dec 14, 2006 1:42 pm

RE: Aircraft Family Variants & Different Landing Gear

Thu May 26, 2016 4:07 pm

Quoting RRTrent (Reply 31):
Its has several mentions, including the OP

You are very correct, I should get myself a very big shovel to dig a big hole to crawl into  
Human rights lawyers are "ambulance chasers of the very worst kind.'" - Sky News
 
User avatar
77west
Posts: 943
Joined: Sat Jun 13, 2009 11:52 am

RE: Aircraft Family Variants & Different Landing Gear

Fri May 27, 2016 5:49 am

Quoting Devilfish (Reply 29):
Please read the post again. I thought it was already abundantly clear with all the references upthread that the 767-400ER's landing gear came from the 777.

Sorry that's what I get for posting after a looong day at work. Point taken.
77West - AW109S - BE90 - JS31 - B1900 - Q300 - ATR72 - DC9-30 - MD80 - B733 - A320 - B738 - A300-B4 - B773 - B77W
 
User avatar
RRTrent
Posts: 460
Joined: Sat Aug 29, 2015 8:12 am

RE: Aircraft Family Variants & Different Landing Gear

Fri May 27, 2016 6:48 am

Quoting zeke (Reply 32):
I should get myself a very big shovel to dig a big hole to crawl into

Haha... no need for a shovel, you should fit into an A320's gear bay  
 
Viscount724
Posts: 19316
Joined: Thu Oct 12, 2006 7:32 pm

RE: Aircraft Family Variants & Different Landing Gear

Sat May 28, 2016 2:43 am

Quoting zeke (Reply 30):
Surprised the A320 has not got a mention yet

It was mentioned in Reply 18.
 
User avatar
Starlionblue
Posts: 19426
Joined: Fri Feb 27, 2004 9:54 pm

RE: Aircraft Family Variants & Different Landing Gear

Sat May 28, 2016 2:55 am

The 350-900 and -1000 also different mains, with the larger variant having more di

Quoting bohica (Reply 22):
The Tupolev TU-144 prototype had the main landing gears attached to the wings just outside of the engine nacelles. The production version had the MLG attached to the nacelles. I didn't see any pictures of the prototype in the database but you can google "TU-144 prototype" and you can compare it to pictures in the database.

This is mainly due to the different locations of the engines. The prototype had all four engines in one nacelle with two intakes and only a small space between them at the front. The landing gear was outboard of the outboards. The production examples had two nacelles with two engines each and a space in between (like Concorde), so the landing gear was relocated to the nacelles.

Prototype:
http://www.tupolev.ru/files/core/istoria/samolety/ty-144/144-16.jpg

Production version
http://www.tu144sst.com/fleet/pictures/cccp-77110a.jpg
https://upload.wikimedia.org/wikipedia/commons/9/97/Tupolev_Tu-144_CCCP-77102_LEB_02.06.73_edited-3.jpg
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos