This is the running hardware kit for the Dumas Dauntless 49.5", the American Enterprise 52" and the USS Crocket Gun Boat 51". This is a twin rudder, twin solid shaft drive for two 6V motors. Includes: 2 #2702 Drive shaft (Stainless Steel, 3/16"x16", threaded 10-32 at one end) 2 #2803 Stuffing box (brass, with oilite bearings, 7.25" long for 3/16" shaft) 2 #3518 Rudder assembly (Stainless Steel, rudder is 3" long, 5.25" total) 1 #3504 Rudder arm (metal, for 1/8" shaft) 1 #3515 Double rudder arm (metal, bellcrank style, for 1/8" shaft) 2 #3317 Strut assembly (cast aluminum, for 3/16" shafts) 2 #7022 Drive dogs (brass, threaded 10-32) 2 #7014 Set collar (steel, for 3/16" shafts) 2 #7016 Thrust washer (nylon, for 3/16" shaft) 1 #3112 Propeller, right (bronze, 2" diameter for 3/16" shaft) 1 #3113 Propeller, left (bronze, 2" diameter for 3/16" shaft) Screws, nuts, bolts and washers for assembly Instructions for assembly MORE+++ Requires: 2 #DUMG2030 6V electric motors 1 #DUMB2520 Speed control for 6V motors 1 6V battery Charger for 6V battery UP 6-3-93/eke May use two 3.5cc inboard marine engines (but will also have to buy 2 engine couplings to fit).