Building the Glen-L HOT ROD - Boat Page 9
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Click to enlarge. Several bricks are used to clamp the joint.  Excessive weight will squeeze too much epoxy from the joint and lead to an unsound joint.  In the background, we're fitting the douglas fir side planking template to the side of the boat.

Click to enlarge.  

Click to enlarge. The frame sides must be faired so that they don't project against the plywood planking.  This would cause a 'hard spot' which could cause the panel to fracture.  Our trusty router jig was clamped to the side of the frame.  (18-APR-2006)

Click to enlarge. The router bit depth was set to cut 1/16" below the chine surface.

Click to enlarge. The operation was repeated at the sheer junction.  A block plane was used to fair the remainder of the frame.

Click to enlarge. Starboard side planking installed.  The port side is being fitted.

Click to enlarge. Two scarf joints fall between frames #4 and #6.

Click to enlarge. View from the starboard rear.  The tumblehome is quite severe but the 5 ply marine plywood conforms to the radius quite easily.

Click to enlarge. Side planking was fastened with 1" #8 screws spaced 3" apart at the chine and 4" apart at the sheer. (11-MAY-2006)

Click to enlarge. Screws will be spaced 2" apart at the stem and transom.

Click to enlarge. Drainage limbers were cut into the rear battens.  Router depth was set at 3/8". (15-MAY-2006)

Click to enlarge. Setting up the radial arm saw to cut a 3" wide by 1/4" deep rabbet on the leading edge of the 1/2" bottom plywood.  A 'wobble' dado blade set at 11/16" wide speeds up the process.  A 1" x 2" guide batten is clamped to the stock and runs along the saw table apron.

Click to enlarge. Closeup view of the rabbet.

Click to enlarge. Both 1/2" panels installed.

Click to enlarge. The first 1/4" front panel butts to the rear ply.  The second 1/4" panel overlaps the rear ply by 3".

Click to enlarge. 1/2" plywood butt blocks will be fitted between the limbers.  A jigsaw was used to trim around the shaft hole.  A 1-3/4" diameter hole saw makes quick work of cutting the rudder port hole.

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Building the Glen-L Hot Rod :      Revised 15-MAY-2006