Dihedral on F4 Phantom

[MtnGoat]

Hi Folks

I'm doing a slope scale F4 and wanted some comments on how I should articulate the dihedral tips or any comments on handling/flying effects of dihedral with this much sweep.

I'm going to do the dihedral at the scale position of 1/3 panel, which is 8" in on the 24" panel for each wing. I'll probably do the scale amount as well, which I haven't measured yet but looks about 15-20 degrees.

I'm thinking on placing ailerons on the dihedral, and flaperons with fully variable camber on the inner panels. Is this a good idea? What would you do?

Here's a pic.

[Ollie]

Dihedral introduces yaw to roll coupling and increases lateral stability. The lateral stability will reduce the pilot work load some. The yaw to roll coupling will make axial rolls harder to do. If you add dihedral, it will require less elevator to keep the nose up in turns and rudder will be necessary to compensate for adverse yaw in low speed turns.

Ailerons in the outer panels will be almost as effective as flapperons (ailerons coupled to flaps) because the flaps, being closer to the centerline, aren't very effective as ailerons. In my opinion, the aileron to flap coupling is not worth the complication unless you want to squeeze every last bit of roll rate out of the set up.

I believe in simplicity and wouldn't add any more complication than necessary to meet your objectives.