length

"length", in respect of a yacht, means ninety-six per cent of the total length on a waterline at eighty-five per cent of the least moulded depth measured from the top of the keel, or the length from the fore side of the stem to the axis of the rudder stock on that waterline, if that be greater. In the case of a yacht designed with a rake of keel, the waterline on which the length is measured shall be parallel to the designed waterline;
PU(A) 379/2003 - LANGKAWI INTERNATIONAL YACHT REGISTRY (REGISTRATION OF YACHTS) REGULATIONS 2003
2. Interpretation.