Things are moving along smartly now.
First off, I laminated 16 flap canoe plates with pink foam :
Then they were carved to shape, and laid out on the wings for a test fit :
That all looked OK, so I bonded them on, then ran some lightweight filler around the bases :
Whilst that was drying, I flipped the wing over, added the 3mm liteply face plate, and the foam trailing edge root part :
I've added a slot through canoe number 2 now, into the servo bay. This was achieved with beaten up old bit of brass tube, heated and poked through :
So, some winglet action now. I bonded medium weight balsa to 3mm liteply.
This was then sanded down both sides to form a semi-symmetrical wing section. Whether that was the right thing to do or not, I don't know, but I didn't want to remove too much of the liteply as it is what gives this part it's strength :
Balsa side :
In place on the wing. You can also see the notch I've taken out of the LE for the wing tip light here :