Table 1: Testing performance at the Chitokolki Mission Hospital project, Zambia Runner Diameter: 1.8m Augmentor ring housing diameter: 2.4m Input water velocity in knots Runner Twin unit KNOT m/sec RPM kW Max. thrust 4 2 33.60 44.10 10,321 4.5 2.3 37.80 62.78 13,063 5 2.5 42.00 86.12 16,127 5.5 2.8 46.20 114.62 6 3 50.30 148.80 23,222