One of the poor fit issues with the tip up canopies is that the forward canopy frame skin extends aft of the bend in the longeron. This creates an unsightly triangular gap when the side skirts are installed (here with the blue plastic). Instead, I’m going to cut off these ears and fabricate longer side skirts our of some scrap 0.032″ aluminum that I have.
With the side skirts moved forward to the apex of the bend, you can see that the fit will be much nicer.
After trimming the ears, I drilled four extra holes to attach them to the canopy frame.
