The upcoming F-104 Starfighter kit from Odd'l Rockets had some interesting kit design challenges. One is the intakes on each side of the body.
The old Centuri kit folded card stock rectangles. They didn't look like the round intakes on the real jet.
I wish I could say the intake shape was developed using some complex geometry. I took the easy way out - I guessed.
Some BT-20 tube was cut into half wedge shapes. This picture shows how many tries it took to get the best fit.
Final shaping is done by sanding the rough cut edges with 220 grit wrapped around the BT-50H body tube.
Okay, here's a good fit!
To make a paper cutting pattern I could just wrap a paper around this intake and trace, but I wanted something more accurate.
More in next post -