This is the section where the wing gimmick on the sides is built.
Parts layout for the wing gimmick.
The wings fold and unfold in 2 stages. Even when folded, they're designed to sit nice and slim.
There's also a wing cover. When you spread the wings, you slide the cover downward, and when the wings are folded in, you slide it back up to hide them. PG-grade, as expected.
After securing the wings.
Wings folded and wings spread.
These sliding wings are auto-opening. Normally the wings want to spring open on their own due to the tension of the spring visible at the top, but when you fold them in, they click into the central locking unit and stay closed.
The switch for this is on the bottom of the hull. When you press that round button, the wing lock releases and the wings slide open with a swoosh~ thanks to the spring action.
But.. pressing the button should make them slide open like that with a swoosh~, but..
You need to get the tension just right on the screws and washers that hold the 3 connected wings together.
This is the proper sequence for the wings to open — they shouldn't all open at once. First the whole assembly needs to spring outward, and then the 3 wings should separate and spread open.
If the wing screws at the top are too loose, after pressing the switch, the 3 wings will sloppily fall apart before the whole assembly even springs outward. Then the inner wing gets caught on the internal bulkhead due to the structure, and you end up with the baffling situation of the wings being stuck and unable to come out;;
In other words, for the wings to slide open smoothly~, the wing lock can't be too stiff..
But if it's too loose, the wings start spreading before they even come out, like in the photo above,
and they end up getting caught and not coming out at all.
Not too stiff, not too loose — everything requires the middle path. A philosophical lesson learned.. *cough*