Design planes

[Mr Man]

I'm assuming you want larger surfaces, for 3-D type flying. In that case...cheat! Keep the wing and tail areas the same, but increase the control surface proportions by copying them from models you like.

Heck, the first models I designed were drawn on the back of plans I'd built, using the same areas and airfoils, but with different airframes. Just turned the plans over on a white table top and traced the important bits.

Remember that proportion guides like these were based on statistical averages of proportions for successful models. No complex aerodynamics. I modify them, as needed, when designing a model. If it's a faster model, I'll decrease the ailerons, elevator, and (maybe) rudder. If it's a slower model, I'll keep the areas at least the recommended size, but I often increase the fin and rudder areas (I like to do slips and spins).

That’s right, I like extreme fast paced aerobatics and fast flying fun.

 

[Captain Dunsel]

That’s right, I like extreme fast paced aerobatics and fast flying fun.

High speed or extreme agility? For high speed, avoiding flutter is a consideration. For low speed, high agility (i.e., 3D), flutter isn't as big an issue.
Again, what proportion of the surfaces you use for control is up to you. What's more important is the proportions between areas and moment arms.

 

[Mr Man]

High speed or extreme agility? For high speed, avoiding flutter is a consideration. For low speed, high agility (i.e., 3D), flutter isn't as big an issue.
Again, what proportion of the surfaces you use for control is up to you. What's more important is the proportions between areas and moment arms.

I do both, with different planes

 

[Captain Dunsel]

I do both, with different planes

Makes sense to me.

 

[Mr Man]

Makes sense to me.

Smaller surfaces on fast planes and massive surfaces in 3d.