The most popular Parker 630 model has recently been upgraded to 650 and available with either single/twin outboards or diesel form when fitted with the latest super economical and light weight Cummins QSD 2.0 (150 or 170HP) with the Alpha One sterndrive . The diesel stern drive is proving incredibly popular and achieves in the region of 36/38 knots, yet burns as little as 8 litres per hour at a comfortable cruising speed of 28 knots. The 650 has one of the smoothest and driest rides of any RIB under 7 m and is equally at home as a generał purpose family runabout or a serious offshore cruising rib, A very much performance craft for extended cruising or commercial / military / security use