I race marathon jet boats at speeds of approx 100 mph on courses that are up to 60 miles long. The areodynamic shape of our hull is somewhat unique. It is an air trapping tunnel hull design so we have air exiting the back of the boat below as well as on the sides and above. Ours is an open cockpit design with canard wings on the front for lift as well as wings on our roll bar for lift as well. The shape is not that bad other than the open cockpit design and the square back on the boat. In videos one can see the water mist being held at the back of the boat at speed. My question is what things can I do to help lessen this apparant drag at the back of the boat. I am thinking of insatlling vg's on the sides and top of the back of the boat. As I am sure that you can tell my understanding of areodynamics is very limited and at best just a lemans understanding. Any help would be greatly appreciated.
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