Surface Piercing Propellers For Fuel-Saving Inshore Fishing Boats
Fishing is one of major local industry in Malaysia especially in rural area. However, the rapidly increasing price of fuel is seriously affected to the local fishing industries. At present, the use of petrol (gasoline) outboard engine in small-scale fishing boat have become popular choice instead of inboard diesel engine due to several advantages such as high speed, low weight, ease to install and space saving. However, petrol outboard engine has a high fuel consumption compared to diesel engine. Nevertheless, installing diesel engine with conventional submerged propeller in existing small-scale fishing boat is not economic since it requires major hullform modification and extra expenditure. Thus is due to the fact that most inshore fishing boats are of semi-planning hullform and free from appendages such as skeg and rudder stock. In addition, conventional propellers coupled to inboard diesel engines suffer on propeller losses. This paper describes a study to reduce fuel consumption by introducing a combination of diesel engine and surface piercing propeller (SPP).