The six outside BT-5 tank tubes almost fit into the surrounding BT-60 tubes.
Later on they will be glued 1/2" inside the BT-60s.
The tubes were marked at the 1/2" mark.
It's pretty easy to dry fit all the tubing together for primer spraying.
When the tubes are dry assembled and sprayed you get an automatic mask for gluing later on!
The inside tube areas have no primer and will be better adhered gluing the bare tube areas together.
After sanding the primer.
Just like a larger Saturn 1B, the tank tubes will be painted black and white before gluing to the upper and lower BT-60 tubes.
If you've ever built a Saturn 1B, you know it's easier to pre-paint the tank tubes.
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