Question: What do I have to do to use the Optional Flaps on my Aero Subaru?

Answer: Cut the Ailerons at the marks indicated. Install two flap servos in the wing. Install the flap control horns provided. Hook up control rods from the flap servos to the flap control horns. Test movement. Setup your radio flap switch etc.

Better Answer: Flaps should only be used with a 5+ channel radio that supports flaps. You will need two extra servos and aileron extensions about 12 to 18' long for each of the two flap servos.

The Subaru comes with full length strip ailerons. Hinges have  been pre-placed and control horn holes predrilled to allow you to cut each aileron at the location indicated on the aileron. Once the aileron has been cut into two sections... the outboard section will become the aileron and the inboard section will become the flap. The flap portion has a hole predrilled for the flap control horn... this is beneath the covering but can be located by examining the flap in strong backlighting. The flap control horns are supplied in the Subaru parts bags and should be installed into the pre-drilled holes in the flaps. There are two extra servo bays in the wings. These bays have covers over them just like the aileron bays did. Remove the flap servo bay covers, install your two flap servos and reinstall the covers and flap servos back into the wing. Now connect control rods from the flap servos to the flap control horns. Test the movement using your radio flap control.