Would someone tell me why with the mixing of flapperons coupled with the elevator would help stabilize the plane in a hover? Also what else does it help you with?

I can't comment on the hovering properties - I can manage a couple of seconds before I get the rudde commands all crossed up.

Elevator -> Flap mixing does help to tighten loops (both inside and outside, when configured properly). You get more lift from your wing in the appropriate direction whenever you pull elevator.

As far as I know...the flapperons would make things worse...

I have people telling me that if you reverse the flap it helps alot in harrier and if you couple your flaps with you ele (like you would for tighter loops) it helps with a flat spin. I'll let you know when my Knife is finished.

I use Flapperon mixing to Elevator for some 3D stuff. You need to have the flapperons go opposite of the direction that the elevator is going.

Example: In a Harrier the elevator is going to be up, trying to hold the nose up. You want the Flapperons to go down at this point. That will also help hold the nose up. It does help to tighten loops because the Flapperons are helping to pull the nose around.
There was some talk about which way to have the Flapperons go a few days back on here and I think the consensus was to have them go the same direction as the elevator for a Harrier. I dont think that is correct. You will have the flaps and elevator fighting themselves. I tried it the other day and it just doesnt work.

As for hovering. I usually turn the ELEV/FPPR mix off to soften out the pitch movements.

Each airplane has its own personality. With my Top Cap when I mixed some spoileron, or up flap with up elevator it stabilized it made it more stable in a elevator. Without the mixing I had lots of wing rock, but with it the airplane would come down 45 degree plus descent with flat pitch angle. With a couple clicks of throttle it would change into a harrier. I've had other airplanes if you tried to use spoilerons it turned into a brick. Just start dialing some in and try it. Tom

You dont runflapperons w/ Elev....you Run spoiler W/Elev..look closlet at the 3D guys Planes in photos when in a Harrier..spoiler Up.

Regards,

Scott

DOn't know why I didn't remember this from my sailplane flying days. A little spoileron helps to wash-out the wing... the air remains attached to the top wing surface so the wing doesn't stall and (abruptly) drop a tip.

Scott,
I admit I do see some guys using spoilerons for some 3D stuff. I still think some people's thinking on which way to go is backwards.
Spoilerons on any plane, whether it be a full scale, a glider, or a 3D model are primarily used to spoil or kill lift on the wing. This will make the nose drop. Exactly what you dont want in a harrier.
Flaps on the other hand are used to increase the lift on a wing. When flaps are dropped in any plane the nose will tend to pitch up. Most scale planes that have flaps need nose down trim to compensate for the added lift generated by the flaps.

Good discussion though......