Narrowboat Engine Ranges

Beta Engine Power Output Narrow Boat Wide Beam Propeller Bow Thruster
Beta 14 13.3 bhp at 3,600 rpm 20' - 25' 6 tons   12” x 8” 6 hp
beta marine
Beta 16 16 bhp at 3,600 rpm 20' - 30' 7 tons   12” x 8” 6 hp
beta marine
Beta 20 20 bhp at 3,600 rpm 20' - 35' 8 tons   13” x 8” 6 hp
beta marine
Beta 25 25 bhp at 3,600 rpm 25' - 40' 10 tons   14” x 8” 6 hp
beta marine
Beta 30 30 bhp at 3,600 rpm 30' - 40' 12 tons   15” x 9” 6 hp
beta marine
Beta 38 35 bhp at 2,800 rpm 40' - 50' 14 tons   16” x 10” 6 hp
beta marine
Beta 43 43 bhp at 2,800 rpm 50' - 70' 18 tons   18” x 12” 6 hp
beta marine
Beta 50 50 bhp at 2,800 rpm 60' - 70' 18 tons 45' - 50' 22 tons 19” x 12” 6 hp
beta marine
JD3 Tug 30 bhp at 1,200 rpm 60' - 70' Tug 18 tons   20" x 20"  
beta marine

You should talk to the boat builder (as they should know the boats designed performance) - the propeller specialist can specify a suitable propeller (based upon engine horse power and rpm) - we then supply the required engine. (The recommended propellers detailed below are based upon 3 fixed blades and a 2:1 reduction gearbox).