Secrets of the molded model technology

We're often asked many questions about our models technology. Let's open the curtains of our main secrets.

We'd better start from the fuselage:

I'll try to show you the technology thanks to which our fuselages are on one hand stronger and on the other lighter than those you can usually see.

The difference is that we glue the fuselages in aluminum CNC forms, which allows us to use pressure and higher temperature when polymerizing the epoxy. During this the layers of fabric are pressed together and the excess of epoxy is squeezed out then the epoxy is strengthened.


Pic.1
Pic.2

Now let's name the processes one by one:

  • Our special separator is put onto the form (pic. 1).
  • The form is painted with acryl paint (pic. 2).

Pic. 3
Pic. 4
  • Needful layers of fabric are put into the form: they are cut on one side and left with an allowance of about 10-15 mm on the other (pic. 3).
  • A sac is packed into the side with an allowance (pic. 4).

Pic. 5

Pic. 6
  • The form is closed and the allowance is touched inside in order to glue the sides of the fuselage (pic. 5).
  • 3 Atm pressure is supplied to the sac and the form is put into the stove with the temperature 600 C (pic. 6).

During the last two years we've run lots of experiments on the wings and stabilizer gluing technology. We've set an impossible task to strengthen and to lighten the construction at one and the same time and we managed to fulfill it but we do not stop on the achieved results and go on searching new approaches to technology and construction. You can read about the materials we use for our machines on the pages of each model.


Pic. 7
Pic. 8
Pic. 9

 

Here I'll name the stages of a molded wing:

  • Our special separator is put onto the form (pic. 7).
  • The form is painted with acryl paint (pic. 8).
  • Needful layers of fabric and reinforcement (brackets, extra pieces of fabric for local strengthening) are put into a form. The layer that we put inside of the sandwich is separately soaked on a polyethylene (pic. 9, 10).

Pic. 10
Pic. 11
Pic. 12


Pic. 13
Pic. 14
  • We lay a preliminary prepared sheet of HEREX with the already prepared slots for the spar, flaps and all other parts (pic. 11).
  • We strengthen the spar slot with carbon fabric and put the inner layer with a film (pic. 12, 13).
  • We put the forms into the sac and pump out the air (pic. 14).
  • After the epoxy polymerization we cut off the excess of epoxy and glue needful balsa plywood beans covered by carbon to it (pic. 15).

Pic. 15 (The wing of GRAPHITE)
Pic. 16
  • Then we mount the spar and glue the upper and lower parts together
  • The flaps are elaborated on the ready-made wing

The technology and construction of the spar is the same as of the built up models. The quantity of layers and construction of wing you can see in the model pages:


Pic. 17 (The wing of BLASTER)

GRAPHITE 2; BLASTER, GRAPHITE

It's impossible to tell in short about all the details of our technology but I do hope that this excursion will help you to understand the world of models making better and to love this sport even more!

For order or questions connect to info@airplane-model.com