It's been my experience that using flaperons for landing is a bad thing.
They do slow you down very well, but they also kill you aileron response at
low speeds.  Basically, if you think about the geometry of it, you can end
up with a situation of cranking the stick over and having the aileron on
the outside wing fully down, and the aileron on the inside wing in
neutral...kind of a good recipe for adverse yaw.  It can really be a
problem if you are coming in for a landing and a big gust comes that you
have to correct for.

Until recently, my flapperoned planes all had full span ailerons, but I
recently got a sloper with tip ailerons only.  I found that the spoilerons
actually worked better this way in this configuration.  Perhaps it was just
this particular plane, but using the spoilerons required no up elevator
compensation.

BTW, my experience with this is just on slope gliders.  Flying an electric
on a flat field might be a different story, especially if there's not much
wind.  If you do use flaperons, I think I would use them in conjunction
with a lot more rudder control, to increase roll response.

At 12:50 PM 8/25/02 -0700, Kent Miller, CMC wrote:
>Hi All,
>
>I would appreciate any comments on pros and cons of Spoilerons and
>Flaperons. I have a couple of hotliners and have set them up with Spoilerons
>( they have ailerons outboard ). I have an SR X-250 and the like ( full span
>ailerons ) and have set them up with Flaperons. Is this the best
>combination?
>
>TIA
>
>Kent Miller
>
>
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