Stem & Sideboard Assembly

9. Temporary Clamping Blocks

B. Clamping block for head of stem: 3” long with 26.5-degree slope; two required.

A. Clamping block for heel of stem: 3” long with 16.5-degree slope; two required.

Step A

C. Small holes are for drywall screws (fitted with washers) that hold blocks in place.

Step B

Step C

D. Large holes for temporary ³/8” bolts to be bored in place through all.

10. Stem and Side Assembly, Step-by-Step

Plan Detail: ’Midship Mold & Spreader

Step A. Place and fasten a temporary piece 2” aft of forward end of each side panel for inner stem to seat against. Fasten from the outside so drywall screws remain accessible after assembly. (These can be removed anytime after the adhesive cures.)

Step B. Attach clamping blocks, clamp assembly together, check that stem is pushed all the way back and that sides are aligned with stem and with each other, then bore the boltholes. Also bore for permanent bronze screws ( 11⁄ 4” No. 10) that attach sides to inner stem.

Step C. Disassemble, blow off dust, and slather on a generous coating of 3M 5200 adhesive. Clamp assembly together a second time, trying to repeat the perfect alignment. Drive and tighten the two temporary bolts, then the permanent screws. (Keep the bolts and clamping blocks in place until after the boat’s bottom has been planked.)

5 • BUILDING THELUMBERYARDSKIFF