Aluminum dual rudder is for gas / nitro powered mono, deep vees, hydros, catamarans etc. It has a dual water pickup for engine cooling (one per rudder).
CNC Aluminum rudder 75mm for electric / nitro rc boat 108
CNC Aluminum Full immersion 40mm Rudder RC boat
New CNC Aluminum / Stainless steel FSR - V15 Full immersion rudder for rc boat
CNC Aluminum Full immersion 50mm Rudder RC boat
Hot Racing Aluminum Dual Pick-Up Rudder Blade for Traxxas Spartan SPN48DR06
CNC Aluminum Fuel filler oil filler alloy Aluminum fuel nozzle for rc gas boat
