Gaj is powered by twin Wartsiladiesel engines having a power of 1421 hp. The propulsion is provided by two Volth Schneider propellers which allows for a 360 degree turn on the spot. The rated bollard pull is 25 tonnes. The ship can achieve a speed in excess of 12 knots with an endurance of ten days. It is fitted with a six-tonne hydraulic deck crane and fire fighting equipment, and is also fitted with diving and salvage equipment. It has a complement of 22sailors.