Washout?

wrote:
I picked up a project that was supposed to be built with 1.5 degrees
of washout towards the end of the wings. The builder unfortunately
built them without washout, because while his workmanship was actually
quite good he was worried he wouldn't be able to match the wings and
one would drop in a stall.

Before I rebuild the wings, what disadvantages am I looking at keeping
things as they are besides the whole wing stalling at once? Any other
aerodynamical problems? And could I cheat a fix by using VGs on the
outer part of the wing?

Depends entirely on the airplane.

What is it?

Richard

wrote:

I picked up a project that was supposed to be built with 1.5 degrees
of washout towards the end of the wings. The builder unfortunately
built them without washout, because while his workmanship was actually
quite good he was worried he wouldn't be able to match the wings and
one would drop in a stall.

Before I rebuild the wings, what disadvantages am I looking at keeping
things as they are besides the whole wing stalling at once? Any other
aerodynamical problems? And could I cheat a fix by using VGs on the
outer part of the wing?

Flaps or no flaps?
If you have flaps, you may consider they add a huge washout...

Some wings wthout aby washout fly very nice...
When Mr Piel take the Emeraude wing to made the 1st CP100 prototype, he
built a new wing without any washout.
The CP100 became the CAP 10. You know the plane...

Is anyone may confirm all RVs wings don't have washout.

By
--
Volem rien foutre al païs!
Philippe Vessaire Ò¿Ó¬

On Sun, 23 Mar 2008 10:33:18 -0700 (PDT),
wrote:

I picked up a project that was supposed to be built with 1.5 degrees
of washout towards the end of the wings. The builder unfortunately
built them without washout, because while his workmanship was actually
quite good he was worried he wouldn't be able to match the wings and
one would drop in a stall.

Before I rebuild the wings, what disadvantages am I looking at keeping
things as they are besides the whole wing stalling at once? Any other
aerodynamical problems? And could I cheat a fix by using VGs on the
outer part of the wing?


*******************************************
Put stall strips on the inboard section of wings.

Big John

A few years ago I saw some photos from a company that made
strap on slats which could be placed on the outboard portion ahead
of the ailerons to delay stalling in that area of the wing and
preserve
roll control further into the stall.

On Wed, 26 Mar 2008 01:34:20 -0700 (PDT), scottperkinsusa
wrote:

A few years ago I saw some photos from a company that made
strap on slats which could be placed on the outboard portion ahead
of the ailerons to delay stalling in that area of the wing and
preserve roll control further into the stall.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Any idea where the inventor/test pilot is buried? vbg


- Barnyard BOb -

"Barnyard BOb" wrote in message
...
On Wed, 26 Mar 2008 01:34:20 -0700 (PDT), scottperkinsusa
wrote:

A few years ago I saw some photos from a company that made
strap on slats which could be placed on the outboard portion ahead
of the ailerons to delay stalling in that area of the wing and
preserve roll control further into the stall.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Any idea where the inventor/test pilot is buried? vbg


- Barnyard BOb -

My, my, you are such a lovable little fuzz ball! ;-)

In theory, something like that should be have an effect similar to the slats
on a Helio Courier--but locked in the open or deployed position.

However, I really don't know how well or poorly it may have worked, and I
suspect that it has been replaced by those little "delta" shaped leading
edge vortex generators.

I don't fully understand the theory on those either, although they certainly
seem more promising than the older method of degrading the inboard portions
of a wing to achieve the desired progression. If anyone has experience
and/or theoretical knowledge, I beg to be enlightened.

Peter

I believe the strap on slats you referred to, were actually
spoilers,strapped to the wing, to be used when the aircraft was tied
down in windy conditions, to eliminate lift ,and airframe damage.