Assuming the spoiler worked in unison with the flap to allow air through the glycol cooler and when the flaps come down it follows. To accomplish this I will probably install separate servo for spoiler. Here is my first pass at how to work out the slaving/mixing requiring 8 channels. I’ve never mixed before so I have no idea if this will work.


Mix1:
Aux2 (inner flap) => flap (outer flap)

Mix2:
Aux3 (spoiler) => Aux2 (inner flap)

Mix3:
Aux2 (inner flap) => throttle

Mix4:
Aux3 (spoiler) => throttle

Kahlog, tell me more about this match box? Here is the problem as I see it The inner flaps and the spoiler were a direct outgrowth of complaints from pilots that they had to take their A, B, C, D, E out of auto cool to shoot because if it moved when they were firing it moved the plane ever so slightly and cost them ammo. So the inner flap and the spoiler have to work in unison to open like a clam shell, while the outer flap stays unmoved. That pushes me to that 8th channel, again, I have never paid attention to mixing, or match box’s or the like choosing rather to do it mechanically.

Joe