Why the negative dihedral of the Predator unmanned aircaft? Is is to protect
the rear airfoils from rocket blast?

On May 24, 12:07 pm, "Phil Rhodes" > wrote:
> Why the negative dihedral of the Predator unmanned aircaft? Is is to protect
> the rear airfoils from rocket blast?

No, it had that arrangement long before anyone thought of hanging
weapons on it.

I they just didn't want the weight of both vertical and horizontal
control surfaces.

Phil Rhodes wrote:
> Why the negative dihedral of the Predator unmanned aircaft? Is is to protect
> the rear airfoils from rocket blast?
>
>
Do you mean the anhedral?

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> Phil Rhodes wrote:
>> Why the negative dihedral of the Predator unmanned aircaft? Is is to
>> protect the rear airfoils from rocket blast?
> Do you mean the anhedral?
>
> --
> Moving things in still pictures!

"Phil Rhodes" > wrote in
:

> Welcome to the killfile
> You'll miss the fun 'n' games
> We got filters all set up
> Honey, we know your name
> This is where you'll find
> Peddlers of sleaze
> Spammers, scammers, "make quick money"
> Throw away the keys.
> In the killfile
> Welcome to the killfile
> Watch it bring you to your
> knees, knees
> you I don't wanna read
>
>
>> Phil Rhodes wrote:
>>> Why the negative dihedral of the Predator unmanned aircaft? Is is to
>>> protect the rear airfoils from rocket blast?
>> Do you mean the anhedral?
>>
>> --
>> Moving things in still pictures!
>
>

Anhedral is the correct term. This article gives a good explanation of the
whole issue.
http://www.aerospaceweb.org/question/dynamics/q0055.shtml

Dave in San Diego

Phil Rhodes wrote:
> Welcome to the killfile
> You'll miss the fun 'n' games
> We got filters all set up
> Honey, we know your name
> This is where you'll find
> Peddlers of sleaze
> Spammers, scammers, "make quick money"
> Throw away the keys.
> In the killfile
> Welcome to the killfile
> Watch it bring you to your
> knees, knees
> you I don't wanna read
>
>
>> Phil Rhodes wrote:
>>> Why the negative dihedral of the Predator unmanned aircaft? Is is to
>>> protect the rear airfoils from rocket blast?
>> Do you mean the anhedral?
>>
>> --
>> Moving things in still pictures!
>
>

Tremendous contribution!

--
Moving things in still pictures!