Series 60

The Series 60 method consists of 62 models tested at D.T.M.B. in which the main dimensional ratios, block coefficient and longitudinal centre of buoyancy of the parent hullform are varied systematically, see References 7. The Series 60 data, presented in terms of CRvs. , enables the residuary resistance coefficient of a hullform to be readily determined for any block coefficient, length-beam ratio, beam-draught ratio and LCB position within the scope of the series, which is as shown below:

The resulting residuary resistance coefficient is then added to the frictional resistance coefficient obtained from the ITTC 1957 model-ship correlation line.