Two wraps of 110 lb. cardstock gave a good fit of the BT-19 into the 20 mm tube.
Here I'm spreading out the white glue with the back side of a razor blade. Any flat card could be used.
Over the years I've learned it takes very little glue to adhere cardstock whether it's a should or a build up wrap.
The two complete wraps are on and the ends almost meet.
A peeled engine casing was slid in the BT-19 tube for support when I rolled a clean dowel over the wraps.
This is all the parts dry fit before sliding and butting together the joints.
From the bottom up -
20mm tube slid into the Adapter centering rings.
The BT-19 tube with two wraps of cardstock slid into the Tomahawk plastic fin can.
Out the top is the yellow coupler to join up the long 20mm Tomahawk tube.
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