Table of offsets :
Shapes shall vary gradually between stations without any sudden changes, parameters for any other station can be obtained by interpolation. Fore and aft and sailtrack measurements between stations 4220 and 4240 may deviate to suit sailtrack-entry fittings. Shape above 20 shall be extrapolated design shape or may deviate to suit top fitting. Shape between 5270 and 5345 may deviate to suit heel fitting. Joints between arcs shall be at their mutual tangent. When a straight line (flat) connects arcs it shall be at their mutual tangent. 'E aft' shall be centred at the baseline. Value for 'E aft' see E.