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HAWK21M
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A318 Height Comparative With Family

Sat May 28, 2005 8:50 pm

Is it true that the A318 stands higher than the A319/20/21s.If so why.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
aerlingus330
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RE: A318 Height Comparative With Family

Sat May 28, 2005 9:03 pm

Yes, Its True...

A318-12.76 m
A319- 11.76 m
A320- 11.76 m
A321- 11.76 m
It is only about 1m, so Im not too sure why

Hope this helps,
AerLingus330
Aer Lingus Airbus A330-300
 
doug_or
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RE: A318 Height Comparative With Family

Sat May 28, 2005 10:05 pm

Taller vert stab. Needs to be bigger to allow for engine out stability. Since the fues is shorter, the vert stab is clsoer to the engines and has a shorter arm.

(see also 737-600)
When in doubt, one B pump off
 
doug_or
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RE: A318 Height Comparative With Family

Sat May 28, 2005 10:07 pm

... and A330-200, I'm trying to think of other shrinks that have this feature, but thats all I'm getting. Pretty sure L-1011-500, 735, And A340-200 all kept their original tails. Any other shrinks I'm missing?
When in doubt, one B pump off
 
2H4
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RE: A318 Height Comparative With Family

Sat May 28, 2005 11:23 pm



747-100 and 747-200 - height 19.33m (63ft 5in)

747-300 - height 19.33m (63ft 5in)

747-400 - height 19.41m (63ft 8in)

747SP - height 19.94m (65ft 5in)



2H4


Intentionally Left Blank
 
dan2002
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RE: A318 Height Comparative With Family

Sat May 28, 2005 11:23 pm

Quoting Doug_Or (Reply 3):
and A330-200, I'm trying to think of other shrinks that have this feature, but thats all I'm getting

747SP


-Dan
A guy asks 'What's Punk?'. I kick over a trash can and its punk. He knocks over a trash can and its trendy.
 
pilotsmoe
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RE: A318 Height Comparative With Family

Sun May 29, 2005 4:10 am

737-600 has a bigger vert. stab, too. The 737-600 looks like a football with wings  airplane 
 
doug_or
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RE: A318 Height Comparative With Family

Sun May 29, 2005 6:43 am

Ah! the SP. THe dimesnions don't do it justice. Becuase the fues slopes down rather strangely, you get much more than surface area than those 2 feet of height would suggest.
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HAWK21M
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RE: A318 Height Comparative With Family

Sun May 29, 2005 5:51 pm

Quoting Aerlingus330 (Reply 1):
A318-12.76 m
A319- 11.76 m
A320- 11.76 m
A321- 11.76 m
It is only about 1m, so Im not too sure why

So the difference in height is mainly by the taller Vertical stablizer.Is the MLG height the same for the entire family.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
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Starlionblue
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RE: A318 Height Comparative With Family

Mon May 30, 2005 10:05 am

Quoting HAWK21M (Reply 8):
.Is the MLG height the same for the entire family.

I would guess that it is the same since the wing is the same and it would be a lot of trouble to change the gear for one version, especially a niche version.
"There are no stupid questions, but there are a lot of inquisitive idiots."
 
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HAWK21M
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RE: A318 Height Comparative With Family

Mon May 30, 2005 1:58 pm

Quoting Starlionblue (Reply 9):
since the wing is the same

Is the A321 Wingspan larger.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
doug_or
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RE: A318 Height Comparative With Family

Mon May 30, 2005 11:32 pm

Only diffrence on the 321 wing I know if is the flaps.
When in doubt, one B pump off
 
ZRH
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RE: A318 Height Comparative With Family

Tue May 31, 2005 2:37 am

Usually shorter aircrafts have to have larger vertical stabilizers. The 318 is higher than the 319/320/321. The 737-600 is higher than the -700/800/900. The 747SP is higher than the -100/200/300/400. The 380 has is also quite high in comparison to its length (the -900 will probably have a smaller rudder). I think this has to do with the leverage.
 
Pihero
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RE: A318 Height Comparative With Family

Tue May 31, 2005 8:38 am

HAWK21M, Doug_Or,

The 321 wing has in fact a deeper chord than the 320, giving it a marginally bigger wing area.
The interesting bit is that the increased wing surface is not for heavier weight reasons (as Doug said,that is taken care of by the new, more lift producing flap system ) but for handling reasons i.e. the risk of tail strike on takeoff rotation.

Regards
Contrail designer
 
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Starlionblue
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RE: A318 Height Comparative With Family

Tue May 31, 2005 10:27 pm

Quoting HAWK21M (Reply 10):
Quoting Starlionblue (Reply 9):
since the wing is the same

Is the A321 Wingspan larger.
regds
MEL

As Doug_Or and Pihero point out, the wing is basically the same, so same span. - - Slightly deeper chord (didn't know about that!)
- Addition of double slotted flaps allows for the same low speed performance.

Quoting ZRH (Reply 12):
Usually shorter aircrafts have to have larger vertical stabilizers. The 318 is higher than the 319/320/321. The 737-600 is higher than the -700/800/900. The 747SP is higher than the -100/200/300/400. The 380 has is also quite high in comparison to its length (the -900 will probably have a smaller rudder). I think this has to do with the leverage.

Exactly. The torque is proportional to the length of the lever and the size of the force. Larger rudder=larger force to compensate for the shorter lever. Of course, the plane does get heavier with length, which explains why the 340-500/600 has the larger fin/rudder from the 330 despite being longer.
"There are no stupid questions, but there are a lot of inquisitive idiots."

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