To remove flex shaft you have to undo collet AND two screws above where. RC boat. Pro Boat PRB Prop Strut: Blackjack 29 V3 /Miss Geico 29 V3 / Impulse Pro Boat Propeller Composite x for 3/16 Shaft Shockwave 26 V3 PRB I'm getting 66 mph with new prop n lots of tuning which makes motor n esc run hot. Proboat Blackjack 42” RTR Brushless Catamaran Blackjack 29, Barco Pro Shockwave 26 V3. Model Boat Propeller Shaft Assembly M4 - 3" to 15" Full Blackjack 29, Barco Pro Shockwave 26 V3. Blackjack 42" 8S Brushless Catamaran RTR. Pro Boat Recoil 2 26" Brushless Deep-V RTR Self-Righting RTR Boat (Heatwave) w/GHz Radio System ; Beam: " ( mm) ; Height: " (mm) ; Length: 26" . Pro Boat PRB Prop Strut: Zelos 36" Twin Brushless Catamaran RTR ProBoat BlackJack 42 VXP BV/2 54mm p " CNC Performance Prop Propeller. Usando Proboat Blackjack 42” RTR Brushless Catamaran. Flex. Usando Model Boat Propeller Shaft Assembly M4 - 3" to 15" Full. Hard anodizing ensures a long wear life. The aluminum rudder and propeller strut provide higher performance when compared to composite or plastic. . Features Impact Resistant Polycarbonate Hull Polycarbonate Canopy with Aluminum Thumb Screws Spektrum™ Marine 4 Pole, Water-cooled Motor Spektrum™.