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A332 Tails Some Taller Than Others?  
User currently offline777way From Pakistan, joined Dec 2005, 5716 posts, RR: 4
Posted (7 years 3 days 22 hours ago) and read 7914 times:

Are some A332 tails taller and narrower at the top than other A332, I'm not confusing the aircrfat with A333 which has a shrter tail thats broader at the top, or its just that in photos that seems to be the case.

[Edited 2007-09-17 14:34:10]

19 replies: All unread, jump to last
 
User currently offlineLY777 From France, joined Nov 2005, 2682 posts, RR: 2
Reply 1, posted (7 years 3 days 22 hours ago) and read 7895 times:

Can you send a photo to see, please?


אמא, אני מתגעגע לך
User currently offlineBlueSky1976 From Poland, joined Jul 2004, 1884 posts, RR: 4
Reply 2, posted (7 years 3 days 22 hours ago) and read 7884 times:

A330-200 does have taller tail than A330-300.


STOP TERRORRUSSIA!!!
User currently offlineOHLHD From Finland, joined Dec 2004, 3962 posts, RR: 25
Reply 3, posted (7 years 3 days 22 hours ago) and read 7861 times:

Maybe it is depending on the angle the photographer is taking the pic.  Smile

User currently offlineUSADreamliner From , joined Dec 1969, posts, RR:
Reply 4, posted (7 years 3 days 20 hours ago) and read 7585 times:

Quoting BlueSky1976 (Reply 2):
A330-200 does have taller tail than A330-300

Really? Or it looks like, because the body is shorter?

Not trying to be a smart ass, just asking.


User currently offlineAndrewtang From United Kingdom, joined Jun 2001, 461 posts, RR: 10
Reply 5, posted (7 years 3 days 19 hours ago) and read 7538 times:

A330-200's tail is indeed bigger and taller than the A330-300. That's because a larger tail is required after shrinking the fuselage size.

Same theory applies in the making of 747SP.


User currently offlineKC135TopBoom From United States of America, joined Jan 2005, 12146 posts, RR: 51
Reply 6, posted (7 years 3 days 19 hours ago) and read 7522 times:

Quoting Andrewtang (Reply 5):
A330-200's tail is indeed bigger and taller than the A330-300. That's because a larger tail is required after shrinking the fuselage size.

All this time I thought the A-330-200 came out before the A-330-300 did.  Wow!


User currently offlineEI321 From Iraq, joined Jul 2009, 0 posts, RR: 0
Reply 7, posted (7 years 3 days 19 hours ago) and read 7507 times:

Quoting USADreamliner (Reply 4):
Quoting BlueSky1976 (Reply 2):
A330-200 does have taller tail than A330-300

Really? Or it looks like, because the body is shorter?

Nope it is actually taller. This is often required when you shorten a design. The A318 and 747SP also have higher tail extensions than the standard designs.


User currently offlineCloudyapple From Hong Kong, joined Jul 2005, 2454 posts, RR: 9
Reply 8, posted (7 years 3 days 18 hours ago) and read 7290 times:

When the fuselage is shortened, the yawing moment arm about the CoG is shortened thus the force is bigger. (re:secondary school physics). So a bigger fin is required to counter the force.


A310/A319/20/21/A332/3/A343/6/A388/B732/5/7/8/B742/S/4/B752/B763/B772/3/W/E145/J41/MD11/83/90
User currently offlinePADSpot From Germany, joined Jan 2005, 1676 posts, RR: 5
Reply 9, posted (7 years 3 days 18 hours ago) and read 7276 times:

Quoting KC135TopBoom (Reply 6):
All this time I thought the A-330-200 came out before the A-330-300 did. Wow!

Nope the -300 is from 1993 and the -200 from 1998.


User currently offline777way From Pakistan, joined Dec 2005, 5716 posts, RR: 4
Reply 10, posted (7 years 3 days 17 hours ago) and read 7139 times:

I was asking about A332 only, I know the A333 has a shorter tail, anyways the A332 tail confusion must be related to photo angles.

User currently offlineCJAContinental From United Kingdom, joined May 2006, 459 posts, RR: 0
Reply 11, posted (7 years 3 days 17 hours ago) and read 7120 times:

Quoting EI321 (Reply 7):
Nope it is actually taller. This is often required when you shorten a design. The A318 and 747SP also have higher tail extensions than the standard designs.

I am curious as to why this is?



Work Hard/Fly Right.
User currently offlineEGNR From United Kingdom, joined Feb 2004, 509 posts, RR: 0
Reply 12, posted (7 years 3 days 15 hours ago) and read 6938 times:

Quoting CJAContinental (Reply 11):
I am curious as to why this is?

It's due to moments. Consider the aircraft's fuselage as a lever...

It is easier to turn a larger/longer lever than it is a shorter one. This is why people use extension bars on wrenches to undo tight nuts/bolts. A moment is turning force, and it is calculated by the force applied multiplied by the distance from the pivot point. Therefore, on a longer aircraft, the tail can be shorter than on a shorter-fuselage variant to maintain the same level of stability. Also, on the larger tail, the rudder will also be larger to apply more force when used.



7late7, A3latey, Sukhoi Superlate... what's going on?
User currently offlineCloudyapple From Hong Kong, joined Jul 2005, 2454 posts, RR: 9
Reply 13, posted (7 years 3 days 14 hours ago) and read 6828 times:

Quoting CJAContinental (Reply 11):
I am curious as to why this is?



Quoting Cloudyapple (Reply 8):
When the fuselage is shortened, the yawing moment arm about the CoG is shortened thus the force is bigger. (re:secondary school physics). So a bigger fin is required to counter the force.



A310/A319/20/21/A332/3/A343/6/A388/B732/5/7/8/B742/S/4/B752/B763/B772/3/W/E145/J41/MD11/83/90
User currently offlineMop357 From United States of America, joined Mar 2007, 85 posts, RR: 0
Reply 14, posted (7 years 3 days 5 hours ago) and read 6380 times:

Quoting EI321 (Reply 7):
Nope it is actually taller. This is often required when you shorten a design. The A318 and 747SP also have higher tail extensions than the standard designs.

Does this also apply to the A 343 and the A 346? I always thought the 346 had a short tail but I thought it was due to the comparison of its length. The 343 came out about 8 years before the 346. How did they work that design?


User currently offlineAg92 From India, joined Jul 2006, 1317 posts, RR: 0
Reply 15, posted (7 years 2 days 22 hours ago) and read 4194 times:

Quoting PADSpot (Reply 9):

Nope the -300 is from 1993 and the -200 from 1998.

Thanks for clarifying that

Also thanks for teaching me something new, in how the tails of shorter aircraft of the same family is taller than others  Smile

Regards
Ag92


User currently offlineMEA330 From Lebanon, joined Aug 2002, 286 posts, RR: 7
Reply 16, posted (7 years 2 days 22 hours ago) and read 3870 times:

Airbus introduced in 2003 improvements to the A330 line (LCD screens, updated interior introduced from the A340-600 line).On the A330-200 a new Fly By Wire rudder control system was introduced with a smaller rudder than older A332's.
The first A332-203 (improved) was for EVA.
777way all EK A332 have the old large fin, while the new Etihad A332's will have the smaller one


User currently offline777way From Pakistan, joined Dec 2005, 5716 posts, RR: 4
Reply 17, posted (7 years 2 days 22 hours ago) and read 3790 times:

Taller thinner top


View Large View Medium
Click here for bigger photo!

Photo © Dominik Zimmermann




Shorter thicker top

View Large View Medium
Click here for bigger photo!

Photo © MUCpictures


So I was right.

[Edited 2007-09-18 14:43:47]

User currently offline777way From Pakistan, joined Dec 2005, 5716 posts, RR: 4
Reply 18, posted (7 years 2 days 21 hours ago) and read 3652 times:

Quoting MEA330 (Reply 16):
Airbus introduced in 2003 improvements to the A330 line (LCD screens, updated interior introduced from the A340-600 line).On the A330-200 a new Fly By Wire rudder control system was introduced with a smaller rudder than older A332's.
The first A332-203 (improved) was for EVA.
777way all EK A332 have the old large fin, while the new Etihad A332's will have the smaller one

Thanks for this information, I noticed it on EVA first before on others like KLM and Air Algerie


User currently offlineCJAContinental From United Kingdom, joined May 2006, 459 posts, RR: 0
Reply 19, posted (7 years 2 days 12 hours ago) and read 3361 times:

Quoting EGNR (Reply 12):

Cheers, thanks a lot, I understood your answer really well, I study mechanics, so I could completely relate.



Work Hard/Fly Right.
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