RE: SU27 Control Surface Setup for ARF
Re: Setup
You want about 8mm of deflection up and 6mm of deflection down.
If your radio has Expo ( recommended! ) you could use a bit more deflection, about 10-12mm up and 8mm down.
If you have Expo set your low rates to give you about 7-8 mm and 10-12mm at high rates, with about 35% and 50% expo respectively.
Take off with low rates and trim the plane out before you play with high rates.
Re: Mixing
Your TX must be set for Elevon mixing.
The RTF version of the plane has the right wing plugged into channel 1 and the left wing into channel 2.
The included TX then has a switch for Elevon mixing.
Most second party TX's put the left wing on a different channel, typically channel 6, so bear this in mind... however how you go about this depends upon your TX.
BTW: What your doing is IMHO the best way to deal with these EDF's.
Your radio will provide much better control and reliability than the one that is packed in the RTF units.
Re: Rudder
Nope, this is what I term a "strange Delta" flyer, which uses only two control surface servos.
In spite of this it flies pretty well.
Be sure the throughly check out and run up the two EDF's in your plane before you fly it.
Re: Starting out
Make sure that the elevator control surface trailing edge ( T.E. ) lies level or oh so slightly above the elevator plane on both sides with your stick centered. They should be even with each other... in effect you want just about or LESS than the thickness of the foam in up elevator deflection as seen at the trailing edge.
The ailerons should be level with the fuselage/wing root contours as with any other plane.