Cyclone Build Part 4 Fin Spar

The fin spar spacer is glued between the two long fin spars.

I cut mine a little oversize so I could sand it down to the outside edges once all three parts had dried. I made sure that the inside spacer's 90 degree edge sat in the right position as the original, slightly smaller spacer.

I clamped the three pieces together with clothes pins for drying.

With the spacer between the two spars, there is a long open "slot" for the upper main fin.