The ram jet nose cone bases were a little wide to fit into the BT-5 tubes.
On the left is the cone base before.
On the right is a cone base that was sanded flat and the sides cleaned up. It didn't take much sanding to get a better fit.
It's going to be hard to get the spray paint inside the ram jet tube with the nose cone glued in place.
I pre-colored the inside of the tube edge and near the base of the nose cones with a wide Sharpie.
A small ring of Fabri-Tac glue was applied inside the tube and the nose cone slid in place.
You'll have to use your eye to center the cone. Both cones should be slid in the same depth.
A real SR-72 is being developed under a cloud of secrecy, so of course its all over Popular Mechanics:
ReplyDeletehttps://www.popularmechanics.com/military/aviation/news/a28420/hypersonic-sr-72-demonstrator-reportedly-spotted-at-skunk-works/