Plate 36.
Piece B is made 3/4" × 3/4" × 5-1/2" and has a slot cut in it, 1/4" wide and 2-3/8" long, as shown. The inside end of the slot is cut at a slight angle to receive the slope of tailpiece C. A hole is bored 3-1/4" from the slot end of this piece, of a size to turn freely on a 1-1/2" No. 8 round-head screw.
Tail C is made 1/4" × 4" × 6" and then 1/2" is measured up from the lower right end corner and 1/2" measured in from this point toward the left and a dot is placed. Draw lines from this dot to the lower-left-hand corner and to the upper-right-hand corner. Round all of these corners, using a 1/2" radius and carefully finish to the lines all around.
The vanes A must be very carefully made to insure a close fit and proper balance. Two pieces are cut 7/8" × 1-1/4" × 7". The method of forming the vanes will be more easily understood by referring to the detail, where every measurement is plainly given. The two vanes are joined with a middle lap joint, which requires considerable skill in forming. Each piece is cut half way through at its middle point, seeing that the groove is no wider than the width of the piece that goes within it.
The two vanes are joined with glue and four 3/4" brads.
A hole is bored in the center, of a size that will turn easily on a 1-1/2" No. 8 round-head screw.
Sand all pieces well with No. 1/2 sandpaper.
Paint the various pieces as suggested in the color scheme and attach the tail C to piece B with glue and 1/2" brads.
The vanes A are attached to piece B with a 1-1/2" round-head screw, with washers under the screw head and between the vanes and piece B. Piece B is attached to block E with a 1-1/2" round-head screw, with washers under the screw head and between B and E.