BTQ 140 2.2 KW 12V 40Kgf Mono thruster - Hydrodynamic bronze base - Composite 4-blade propeller: corrosion resistance and minimum current absorption - Composite relay protection box - 12V - 2.2 KW power - 40Kgf thrust - Elastic coupling - Aluminium motor support - Microprocessor to prevent overheating - Reversible torque with timer. - Timed automatic stop.