$1.$ A twin screw high speed tanker model tests results are given in the following tables. Tank water temperature was measured as $\backslash (22^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ at the test day. The area of rudders $\backslash (128\mathrm{.}83\backslash$mathrm$\{$~m$\}^\{2\}\backslash ),$ while the area of bilge keel is $\backslash (\backslash$mathrm$\{$S$\}\_\{\backslash$mathrm$\{$B$\}\}=77\mathrm{.}74\backslash$mathrm$\{$~m$\}^\{2\}\backslash ).$ Model tests were carried on with rudders $($rudders are installed on model hull body$).$ Turbulence stimulators are the pins.

i$.$ Determine the form factor

ii$.$ Determine the towing resistance of the ship at $18$ and $24$ knots of speeds using standard ITTC $1978$ Performance prediction method.

iii. On the extrapolation, for the appendages, take beta Factor as $0\mathrm{.}70.$

Data Given:

Naked hull and appended hull resistance data

Hydrostatic Properties: