Models View all NACA SUBMERGED DUCT ENTRANCES RM A7I30 5 107 0 NACA BLADE CROSS SECtION (RAF6 - <CLARK Y) 0 50 0 Naca BLADE(37-3647(clockwise 2Blades)) 1 114 0 NACA PROPELLER BLADE(5868-9(counter-clockwise 2Blades)) 12 574 4 NACA PROPELLER BLADE(5868-9(clockwise 2Blades)) 2 175 1 NACA BLADE(5868-9(counter-clockwise 2Blades)) 0 41 0