SpeedMaster small inline skeg strut and single pickup rudder assembly. CNC Machine cut in the USA from High-Quality Aluminum. Straight blade rudder with dual water pickups and strut for 3/16" propeller shaft. We estimate this will work with 30"(750mm) to 40"(1000mm) catamaran hulls. Requires only 4 mounting holes for quick and easy mounting. Specs: Dimensions: See picture, sizes are +/- 1mm Weight: 125 grams The mounting plate measures 29mm ("1.125") wide by 25.5mm("1.00) tall Skeg Style Strut Rudder arm on both left and right side of the blade. Includes everything in the picture, plus brass bushing. Requires: Cable with 3/16" propeller shaft.K&S 8131(1/4") Brass Stuffing Tubes
