I have gotten the Futaba SkySport 6VA to support elevons without any add-on doo-dahs. While you won't find *any* reference to this capability in any of the documentation for this tx, it is indeed possible.
It should have been obvious but I missed the implications of the existing mixers: you enable *both* the flaperon mixer *and* elevator->flap mixing to through the back panel switches, and enable the flaps with the toggle switch on the top/right of the front. This couples both aileron and elevator sticks to the same pair of control surfaces. It works marvelously!
One side effect (that might be a bit disconcerting at first) is you lose the normal elevator trim to the left of the elevator stick. That functionality moves to the flap control knob at the top/right of the tx. Might take a moment to get used to I reckon, but it shouldn't be a major issue...
Anyway, here's the detailed blow-by-blow procedure to setup an elevon function on the Futaba 6VA SkySport:
There you go. Again, some experimentation with the use of the backpanel trimmers will be required to understand their effects. But once you've got this set up, controlling a "flying wing" is a piece o' cake! And you won't need to fabricate the sliding-tray rigs or spend another ~$30 for an add-on mixer.
On that note, once again, a big *Thank You* to the people at Quillen Engineering (see their ad in the small advertisers section in RCM) for clueing me into the fact that the 6VA *could* handle elevons (even though they didn't know the details). They could have just as easily taken my money for one of their neat PIC mixers, but instead they lent me a major hand that saved me the time, money, and weight...
Also: if you have the review of the 6VA that was carried in the September issue of Model Builder magazine (written by Joe Petro, if I have the name correct), you should be able to find the details on this (and perhaps worded better, too! ;^) I wasn't able to locate a copy so I had to go it alone...
Good luck/Have fun!/dave
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