Patent ID: 7765946

Claim:
A thruster and hull tunnel assembly for a marine vessel hull, comprising: said vessel hull having an interior section and exterior section; an integrally molded thruster tunnel section formed in said exterior section of said vessel hull; a mounting member secured to said vessel hull interior section; a thruster motor attached and secured to said mounting member; a propeller base unit for receiving a propeller blade unit; said propeller base unit attached to said vessel hull exterior section within said integrally molded thruster tunnel section, said propeller base unit secured in place to said integrally molded thruster tunnel section; said propeller base unit being securely mounted within said integrally molded thruster tunnel section, and further to said mounting member by hardware means for fastening attached through said vessel hull; a keystone insert, said keystone insert forming a complementary shape to said integrally molded thruster tunnel section; said keystone insert being placed and securely mounted within said integrally molded thruster tunnel section; and said keystone insert completing a chamber within said vessel hull for water flow about said propeller base unit.