Hi, everybody.
I want to build Su-22M4 in Polish Air Force colours. Su-22 is export version of Su-17.
My goal is to make swing wings.

My motivation - Su-22 from PhoenixRC sim.

Su-22 PhoenixRC (2 min 53 sec)

Plans are in post #48

OK robertus, good luck to you, and post photos when done!

Very fine detail in the (google sketchup?) 3D thing. Looking forward to the swing wing mechanism........

-joker

Yes, this is google sketchup.
I wonder. Distance between the points of rotation in the wings is large, about 14inches. And, on the plane, they turn only wingtips.
Maybe instead of making mechanism as the F-14

I'll do a separate mechanisms for each wing.

Some progress in sketchup
I increased the wing and elevator about 10%


Top view

Few pictures from building
Wing with kfm2 wing profile 6+3 depron (insulation) foam

Framework

And completed model.



This only a prototype. She will not fly. I did it only to examine the correctness of the design and for test gliding.

Today I did test glide for different swing wings.

Su-22 CoG and swing wing (0 min 28 sec)

The center of gravity has shifted to about 2cm (0,8inch) to the rear for the minimum wingspan ..

Position 0 - max wingspan CG is 425mm (17in) from the back
Position 1 - min wingspan CG is 405mm (16,2in )from the back
I wonder if in the final model will have some meaning.
Maybe is sufficient a small adjustment with elevator.

Pre-fitting equipment.


Now I build a wing.
The mechanism of the wing

Subscribed

Testing of swing wings

Su-22M4 swing wing tests (0 min 19 sec)

Building a wings

Some little progress with fuselage

Top

Bottom

I want to do vertical stabiliser like in real plane, as panel.
I have seen this solution in F15 by GWS.
I use 9g servo to this.

Su-22M4 test stabilizatora (0 min 45 sec)

What do you think, is would be good? Maybe it's better to give a stronger servo?
I want to control plane only by elevons. There would not ailerons.

Very nice build.
Just love that wing setup.Want to see the end result.
Happy building.

I want to do this painting.

I finished the tail.
It stiffen 1.6 mm plywood on both sides. Servo is in block of balsa.


In centerwing section will be reviewed by the electronics.


And that's all for now