Landing School 30 D4 MP mainsail construction

D4 MP is Dimension-Polyants' custom load path laminate for boats 40' and under.  Load yarns are laid out on 60" wide panels before lamination.  MSP's design is then plotted onto the panels.  Dimension-Polyant can assemble and glue the panels although we do this ourselves at Maine Sailing Partners.  Here, we are assembling the individual panels to a Landing School 30 mainsail. Here we are checking the sail for any assembly or cutting errors before gluing.  We didn't like the way the third seam from the top looked so we took it apart, put it back together, and checked it again.
.  After double-checking the sail shape, we mask the seams and glue them with DP's Ultrabond hot glue.  Here, Ken is driving the glue gun, and I'm driving a squeegy.  It's not very high-tech, but it makes a very smooth and strong seam.
This is the completed blank ready for finishing. Here's another view of the same Landing School 30 mainsail.  Note the square head.