Hi all,
Ask me how I Know

The upper wing, although hollow, is still a relatively heavy and large piece of the model.
As such, when attached to just the four outer struts, it will move and twist until the four inboard struts are fitted, which will make the fit of the wing more rigid.
Until then the upper wing can easily shear away from the four outer struts!!
Therefore it’s best to restrain upper wing movement as much as possible for the remaining construction of the model.
I used sponge packing pieces inserted between the wings, held in place by elastic bands around the wings and packing.
Mike
