With the model turned on its side, Here's the angle I sanded the wing extension to fit into the slot on the top of the drive units. Ment...

Oh Boy - you need three hands to pull this off! The cardstock was dry fitted many times. You have to double check all sides to make sure it ...

Here's a place where I didn't follow the instructions. You are directed to sand an angle on the outside of the wing edges, then glu...

Here's where I screwed up! The instructions show a slight down dihedral here at the right center illustration.  I thought the center tip...

These detail pieces are small! These are sanded down to 1/16" thickness.  Sanding the sides at an angle is not easy. Now to fill the gr...

The engineering hull top is a curved piece of cardstock. Gluing flaps are folded underneath the exposed top. I burnished mine with a Sharpie...

The primary hull halves (nose section) plastic was pretty thin. It takes a bit of forming to get the clay weight so the BT-5 tube will fit. ...