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I have a killer question

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Old 07-18-2004, 01:21 AM
  #1  
Fly-guy
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Default I have a killer question

Ok, I am building a .25 profile and I want to know, is it possible to use two servos on each aeileron and have them plugged into the RX to function as flaperons and spoilerons???? I am using a JR XF631 and I want to program the flpaerons onto my flap switch and and spoilerons onto my gear switch, but can it be done with 2 servos. Just wondering if all you radio setup buffs out there could help me.

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Old 07-18-2004, 01:47 AM
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Default RE: I have a killer question

As long as each aileron has it's own dedicated servo, the only problem you may have is having enough mixing capacity within your transmitter. You will need to be able to assign a mix to the gear switch, since the spoilerons will be using the flap switch.

With some transmitters, once you use either the flapperon or the spoileron, the other is not available any longer. I don't know enough about the 631 to have any certainty.
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Old 07-18-2004, 01:57 AM
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Default RE: I have a killer question

Mmmmmmm,
I will definatly be able to have flaperons, not sure about spoilers
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Old 07-18-2004, 08:06 AM
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Default I have a killer question

Why do want to use TWO one each aileron? Never heard of such a thing in a .25
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Old 07-19-2004, 03:10 AM
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Default RE: I have a killer question

Why do want to use TWO one each aileron? Never heard of such a thing in a .25
Sorry, maybe i was unclear, i am using one servo in each wing. I had a bit of a think last night about whether I'd eed the spoilerons right away, if I only can have flpas thats OK coz' I wanted them to make harriers easier, and spoilers for inverted havviers.

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Old 07-19-2004, 10:08 AM
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Default RE: I have a killer question

other way around... harriers are much easier with spoilerons (ailerons UP)...

I have no idea with your radio, but I've set all my planes up with that function on a rotary control/slider of some sort. that way you are locked in to a specific setting, you can dial up whatever amount you need, either +/- of center.
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Old 07-20-2004, 01:49 AM
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Default RE: I have a killer question

other way around... harriers are much easier with spoilerons (ailerons UP)...
Hmmmmmmmm, I really thought it was the other way round, but I'll take your word for it. You could do inverted harriers easier with flpas
Anyway, I'll set it as spoilers, because I can just set the servo travel and reverse it so they will function as spoilers.

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Old 07-20-2004, 11:49 AM
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Default RE: I have a killer question

with the spoilerons up the plane is forced into a harrier attitude, not much you can even do about it if you wanted to. just a little more back elevator and it will stall out and harrier quite easily. using flaperons (ailerons down) the natural attitude of the plane will be very level, might even be a little nose down. flaperons also tend to induce some pretty nasty tip stalls on most planes, not what you want for harriers!
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Old 07-23-2004, 06:17 AM
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Default RE: I have a killer question

HI.

"flaperons also tend to induce some pretty nasty tip stalls on most planes"

I use them on all my airplanes from the SU-DO-KHOI to the big CAP and 202. This is an option that I like to have set up on a switch on my 9Z. I have flown slow and low and have yet to see any tip stall. They definitely get the aircraft off the ground quicker!! ( must have a good power plant)
Also while flying just reverse them with a flip of a switch and have some real fun!!!
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Old 07-23-2004, 01:41 PM
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Default RE: I have a killer question

For planes with out-board ailerons, flaperons WILL generally increase your tip-stall speed. Think of it as inducing wash-in at the wing tips. With full-span ailerons, it should not be that much of a problem. I usually use spoilerons to reduce the glide path (reduce lift) to shorten an approach, and depending on your plane, Elevator to Flap coupling (both ways) helps with harriers and tumbles.
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