RC Groups Sea BB 26 Build Manual page 12

11. Motor Pylon Sub-Assembly
A. Add dowels and cross brace to pylon center lamination.
Note temporary tab. This is cut off after dowel glue is dry.
3/16" x 3-15/16"
dowel
B. Add the firewall cheek blocks. Shown in finished contour.
Contour when motor pylon is complete (after step 12).
C. Clean off any excess glue when dry.
Cheek Blocks