Streamer D Rocket Build, Part 3, Tube Smoothing & Nose Cone Shoulder Fit

The seams on this BT-5 tube were almost non-existent. I didn't fill the seams. I did lightly sand with 220 grit and polished with 400 grit.

The shoulder of the nose cone was a little wider than the outside diameter of the body tube.
With the nose cone in place you can use the sanding block to take the lip down to the tube diameter.
Sand lightly, then run a finger over the joint to feel for any raised "step".







Before the fins were glued on, the tube and nose cone got a shot of filler/primer and smooth sanding to surface. I don't use the filler/primer as a "primer", but more as a filler for any remaining seams or balsa grain.