hi,

the latest disser wing ....

this time i sprayed a clear coat on top of the pva to have a high gloss and closed surface .
result looks very good but it added 8-10 grams to the wing .

132.8grams


-kristof-

very nice work!!

wow ! i'd live with the extra weight if it looks as good as that, looks factory built from here, respect !

Originally Posted by mrdoodah

wow ! i'd live with the extra weight if it looks as good as that, looks factory built from here, respect !

that's what i'm trying to achieve, i think it looks the same from here too

That is a seriously nice wing, 130g is nothing to complain about! The wings I've seen in person were factory quality as well, and this looks even a notch above them!

Is that the flying weight of the wing or do the servos and RDS still need to be installed?

Nice work btw

Originally Posted by ShadowFalken

Is that the flying weight of the wing or do the servos and RDS still need to be installed?

Nice work btw

no servo's , if it was with servo's i would be more then happy with it!

overall it is a reasonable weight for this finish.

-kristof-

Tested the first this morning. I like it, I don’t like the rudder, I think a larger one like Swindell’s or new Stobel’s is better, I can see the tail moving when I launch, this mean that wit a different rudder I can launch 9/10 m more. While I was testing the snap flap with Gerald Tailor system, I started climb doing looping, after 54 looping I decided to start turning the thermal ! 
When I launch it don’t climb straight, it tend to turn nose up during the climb. I set it with reverse differential. It climb really high without any noise, it is really light on my finger during launch, easy to fly, now I need to fly more to discover it.
Bye
Simone

hi simone,

indeed the area of the rudder is an important factor on how high you can throw a plane , the helios rudder is 2.1 dm² wich is not small , i don't now the size of the swindell but i doubt it would be much larger.

in fact i think most vertical's are smaller then mine!

-kristof-

Originally Posted by moonwalkerfj

Tested the first this morning. I like it, I don’t like the rudder, I think a larger one like Swindell’s or new Stobel’s is better, I can see the tail moving when I launch, this mean that wit a different rudder I can launch 9/10 m more. While I was testing the snap flap with Gerald Tailor system, I started climb doing looping, after 54 looping I decided to start turning the thermal ! 
When I launch it don’t climb straight, it tend to turn nose up during the climb. I set it with reverse differential. It climb really high without any noise, it is really light on my finger during launch, easy to fly, now I need to fly more to discover it.
Bye
Simone

Simone, I think you are fooled by the width of the new Stobel rudder.

My rudder is 2.11 dm^2, let's say as big as the Helios rudder.

On the 2 pictures you see the 2 rudders (Tantalus/Stobel) on top of each other.
I would say that the Stobel is less in surface area (not much) than the Tantalus/Helios.

Maybe the thickness of the rudder is of importance. Mine are 6.2 mm thick, the once I had made out of balsa were 4 mm. The thinner rudder gave me more waggle and therefor less starting height.
I don't know about the thickness or airfoil or weight of the Helios rudder.


Loet

loet,

the helios rudder is 5.7mm thick , edge foil .

also the distance from wing to vertical is very important but i don't excpect it to be diffrent comparing our models .

-kristof-

Originally Posted by Loet Wakkerman

Simone, I think you are fooled by the width of the new Stobel rudder.

My rudder is 2.11 dm^2, let's say as big as the Helios rudder.

On the 2 pictures you see the 2 rudders (Tantalus/Stobel) on top of each other.
I would say that the Stobel is less in surface area (not much) than the Tantalus/Helios.

Maybe the thickness of the rudder is of importance. Mine are 6.2 mm thick, the once I had made out of balsa were 4 mm. The thinner rudder gave me more waggle and therefor less starting height.
I don't know about the thickness or airfoil or weight of the Helios rudder.


Loet

Originally Posted by krikkens

hi simone,

indeed the area of the rudder is an important factor on how high you can throw a plane , the helios rudder is 2.1 dm² wich is not small , i don't now the size of the swindell but i doubt it would be much larger.

in fact i think most vertical's are smaller then mine!

-kristof-

The question is not the area but it distribution, the first to undersund this was Richard Swindell, the Stobel and the Concept had the same problem of Helios, when I told to Roland Sommer (builder of Concept) that a low aspect ratio rudder was better than a high aspect ratio rudder he told me that all software test show that I was wrong, I convinced him to make a test, he followed mine indication, same story for the Stobel, less height more chord is the way. Don't misunderstund me, my first impression of the Helios is great, but like evrithing it can be improved and the only thing that can be for me is the rudder. The fuselage is a beauty, strong and with a lot of space, the easiest to assemble ever for me.
Bye
Simone

I still not tested your rudder, i will do soon, as I told not area but chord is the problem. I'll let you know the results with your rudder, where have I to make the slot for the boom?
Thank you
Simone

Originally Posted by moonwalkerfj

I still not tested your rudder, i will do soon, as I told not area but chord is the problem. I'll let you know the results with your rudder, where have I to make the slot for the boom?
Thank you
Simone

hi simone,

i don't understand , you didn't tried the helios rudder yet? are you now flying the swindell?

you can make it where you wan't , some like to cut only the boom and not the vertical , you can also cut both pieces but don't cut the rudder spar! you can see were it is .

you now you have to mount it 0.65° degrees rotated , right? see supergee tailplan for more info.

http://www.charlesriverrc.org/articl...2/sg2_tail.pdf


-kristof-

Originally Posted by moonwalkerfj

I where have I to make the slot for the boom?
Thank you
Simone

I do it 115 mm the measured from the bottom.