|Thames tonnage rule |B{2}(L-B) ÷ 188 | 15.9 | ? | | 80 | | | | | | +-----+-------+------------------------------+---------------------+------+------+ |1880-| XVIII.|Y.R.A. tonnage rule |B(L+B){2} ÷ 1,730 | 13.8 | 17.9 | | 86 +-------+------------------------------+---------------------+------+------+ | | XIV. C|Richardson's rule, cubic form |S [V¯]S ÷ 6,000 | 9.97| 15.7 | | +-------+------------------------------+---------------------+------+------+ | | XV. B |Length rule, cubic form |L{3} ÷ 5,000 | 9.08| 11.01| +-----+-------+------------------------------+---------------------+------+------+ +-----+-------+------------------------------+---------------------+-------------+ | | No. | Name of rule or proposal | Rule or proposal | Examples | | Date| in +------------------------------+---------------------+------+------+ | | text | Linear rules | Variable ÷ constant |Decima|Doreen| +-----+-------+------------------------------+---------------------+------+------+ |1882?| III. |Seawanhaka rule | L+ [V¯]S ÷ 2 | 38.33| 38.82| +-----+-------+------------------------------+---------------------+------+------+ | ?| IV. |New York rule | 2L+ [V¯]S ÷ 3 | 37.45| 38.57| +-----+-------+------------------------------+---------------------+------+------+ | ?| V. |Y.R.A. Rule (Dixon Kemp) | [3V¯]LS ÷ 1 | 39.12| 39.11| +-----+-------+------------------------------+---------------------+------+------+ | 1893| XI. |Y.R.A. modified (Thalassa) | LS/M ÷ 72 | 37.23| 38.34| +-----+-------+------------------------------+---------------------+------+------+ | 1893| XII. |Seawanhaka ditto (Thalassa) | L+ [V¯]S-[V¯]72M÷ 1 | 36.71| 38.23| +-----+-------+------------------------------+---------------------+------+------+ | 1893| IX. |Herreshoff's new rule | L [V¯]S / [3V¯]T÷15 | 38.69| 37.01| +-----+-------+------------------------------+---------------------+------+------+ | 1892| VI. |Watson's rule, linear form | 2L+2B+D+[V¯]S ÷ 3.8 | 37.60| 38.58| +-----+-------+------------------------------+---------------------+------+------+ | ?-86| XV. A |Length rule | L ÷ 1 | 35.65| 38.05| +-----+-------+------------------------------+---------------------+------+------+ | 1886| XIV. B|Richardson's rule, linear form| [V¯]S ÷ 1 | 41.00| 39.60| +-----+-------+------------------------------+---------------------+------+------+ _The following Dimensions were used in the Examples_