I built the wings as a sandwich from Styrofoam and
veneer.
The kernel ist styrofoam. I cut it with a hot conductor, heated by electric
current.
To connect it I used a special "pu-glue" which is foaming
a little before it is drying.
So I received a very reliable construction.
The Avenger has a fixed "letter-box"
in it´s wings. I cut it from the wing part, shortened the piece
and fixed it in again.
To make the wing best fit to the fusealage I added
a small stripe of styrofoam.
I painted the contour of the fuselage to the wing and sanded it carefully.
The edges of the wings are made from styrofoam as well.
For more details I added panel borders before I put the wings unter
a glassfiber.
Next thing to do was to cut the ailerons and the flaps
from the wings.
Here you can see the left wing even with the slot for the aileron-rudermachine
and space
for the main gear. The flaps are fixed by piano hinge which I produced
from bowden wire by cutting all cm a peace off it.
By the different colours you can see the construction
of the piano hinge very well.
A 2mm steal filament connects both sides. It is just slid in and it
is easy to remove.
Like the prototype my Avenger has ribs at it´s flaps. Each has
a different size.
Gluing the ribs to the flaps.
The effort was worth it. Only 57 gram which is about 2 oz.
And 26 gram - less then 1 oz.
In their new working place the flaps look really good.
Only a little colour is missing ...
The aileron hinges lie outside the wing under the ailerons.
I made the hinges from aluminium and glued a bearing from brass into
them for
smooth working.
Stay tuned - next time I´ll show you
how I made the tail details