negative dihedral

On Wed, 4 Jun 2008 22:53:30 -0700 (PDT), "Robert M. Gary"
wrote:

Q2: Does anyone have a design rationalization *for such a
configuration, as opposed to just zero dihedral? I can appreciate why
fighters have it -- they exploit lack of aerodynamic stability for
rapid *maneuvers -- but transports that spend their whole life being
straight and level are another issue.

Negative dihedral provides a place to hang bombs ala the USNavy's A-7
Corsair II.

Yeah, there's no way you could hang bombs on a wing with positive dihedral, like
the A-1 Skyraider. :-)

Ron Wanttaja

"Robert M. Gary" wrote in news:fe88d496-d08f-4a7f-8a0a-
:

On Jun 3, 3:13*pm, Tina wrote:
I understand how positive dihedral helps dynamic stability in
airplanes, but some big ones, like the Russian An 124 Condor, has a
pronounced negative dihedral -- the wings have a noticeable downward
slope.

Q1: Do those airplanes need active fly by wire controls to maintain
stability, or is something else at play that keeps them right side up?

Q2: Does anyone have a design rationalization *for such a
configuration, as opposed to just zero dihedral? I can appreciate why
fighters have it -- they exploit lack of aerodynamic stability for
rapid *maneuvers -- but transports that spend their whole life being
straight and level are another issue.

Negative dihedral provides a place to hang bombs ala the USNavy's A-7
Corsair II.



Uh. OK



Bertie

"Bertie the Bunyip" wrote in message
...
"Robert M. Gary" wrote in news:fe88d496-d08f-4a7f-8a0a-
:

On Jun 3, 3:13 pm, Tina wrote:
I understand how positive dihedral helps dynamic stability in
airplanes, but some big ones, like the Russian An 124 Condor, has a
pronounced negative dihedral -- the wings have a noticeable downward
slope.

Q1: Do those airplanes need active fly by wire controls to maintain
stability, or is something else at play that keeps them right side up?

Q2: Does anyone have a design rationalization for such a
configuration, as opposed to just zero dihedral? I can appreciate why
fighters have it -- they exploit lack of aerodynamic stability for
rapid maneuvers -- but transports that spend their whole life being
straight and level are another issue.

Negative dihedral provides a place to hang bombs ala the USNavy's A-7
Corsair II.



Uh. OK



Bertie

Relevance?
More compulsive behavior.
You reply even when you have no relevant answer.

"Maxwell" luv2^fly99@cox.^net wrote in
:


"Bertie the Bunyip" wrote in message
...
"Robert M. Gary" wrote in
news:fe88d496-d08f-4a7f-8a0a-
:

On Jun 3, 3:13 pm, Tina wrote:
I understand how positive dihedral helps dynamic stability in
airplanes, but some big ones, like the Russian An 124 Condor, has a
pronounced negative dihedral -- the wings have a noticeable
downward slope.

Q1: Do those airplanes need active fly by wire controls to maintain
stability, or is something else at play that keeps them right side
up?

Q2: Does anyone have a design rationalization for such a
configuration, as opposed to just zero dihedral? I can appreciate
why fighters have it -- they exploit lack of aerodynamic stability
for rapid maneuvers -- but transports that spend their whole life
being straight and level are another issue.

Negative dihedral provides a place to hang bombs ala the USNavy's
A-7 Corsair II.



Uh. OK



Bertie

Relevance?
More compulsive behavior.
You reply even when you have no relevant answer.


That's not compulsion, fjukkktard.





Bertie

"Maxwell" luv2^fly99@cox.^net wrote in news:wOU1k.3439$QI2.1788
@newsfe23.lga:


"Bertie the Bunyip" wrote in message
...
"Maxwell" luv2^fly99@cox.^net wrote in
:


.


That's not compulsion, fjukkktard.





Bertie

Sure it is Squirty the ****drip, you just can't stop.




Sure i can, There's a difference, PKB boi.


Bertie

"Bertie the Bunyip" wrote in message
...
"Maxwell" luv2^fly99@cox.^net wrote in
:


..


That's not compulsion, fjukkktard.





Bertie

Sure it is Squirty the ****drip, you just can't stop.

"Maxwell" luv2^fly99@cox.^net wrote in
:


"Bertie the Bunyip" wrote in message
.. .
"Maxwell" luv2^fly99@cox.^net wrote in news:wOU1k.3439$QI2.1788
@newsfe23.lga:




Sure i can, There's a difference, PKB boi.


Bertie

Na ya can't, and no there isn't. I think you have a little to much
anhedral between the ears.



Mebbe, mebbe not.

Don't matter, k00k.


Bertie

"Bertie the Bunyip" wrote in message
.. .
"Maxwell" luv2^fly99@cox.^net wrote in news:wOU1k.3439$QI2.1788
@newsfe23.lga:




Sure i can, There's a difference, PKB boi.


Bertie

Na ya can't, and no there isn't. I think you have a little to much anhedral
between the ears.

On Jun 5, 6:54*am, Ron Wanttaja wrote:

Yeah, there's no way you could hang bombs on a wing with positive dihedral, like
the A-1 Skyraider. :-)

Are you comparing the BB's that the A-1 carried with the real toys
that the A-7 held?

-Robert

People, if you are going to answer any of the AUKk00ks, remove any mention
of any NG with the word "kook" in it. The AUKk00ks are actually harmless if
left to themselves.

"Bertie the Bunyip" wrote in message
...
"Maxwell" luv2^fly99@cox.^net wrote in
:


"Bertie the Bunyip" wrote in message
...
"Robert M. Gary" wrote in
news:fe88d496-d08f-4a7f-8a0a-
:

On Jun 3, 3:13 pm, Tina wrote:
I understand how positive dihedral helps dynamic stability in
airplanes, but some big ones, like the Russian An 124 Condor, has a
pronounced negative dihedral -- the wings have a noticeable
downward slope.

Q1: Do those airplanes need active fly by wire controls to maintain
stability, or is something else at play that keeps them right side
up?

Q2: Does anyone have a design rationalization for such a
configuration, as opposed to just zero dihedral? I can appreciate
why fighters have it -- they exploit lack of aerodynamic stability
for rapid maneuvers -- but transports that spend their whole life
being straight and level are another issue.

Negative dihedral provides a place to hang bombs ala the USNavy's
A-7 Corsair II.



Uh. OK



Bertie

Relevance?
More compulsive behavior.
You reply even when you have no relevant answer.


That's not compulsion, fjukkktard.





Bertie

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