| Overall Measurements | Ratios | Sail Measurements | Sail Areas (Sqm/Sqft) | ||||||||||
| LOA (CM/FT) | 900 | 29.53 | SA/DSPL | 30.63 | I (CM/FT) | 855 | 28.05 | Main | 26.8 | 289 | |||
| LWL (CM/FT) | 851 | 27.92 | DSPL/LWL | 49.74 | J (CM/FT) | 356 | 11.68 | JIB | 15.2 | 164 | |||
| Beam (CM/FT) | 173 | 5.67 | Ballast/DSPL | 64% | P (CM/FT) | 1035 | 33.96 | Sail Area | 31.2 | 346 | |||
| Draft (CM/FT) | 220 | 7.22 | E (CM/FT) | 315 | 10.33 | Spinnaker Area | 56.9 | 612 | |||||
| Displacement (KG/LB) | 1100 | 2,425 |  |
JC (CM/FT) | 500 | 16.4 | |||||||
| Ballast (KG/LB) | 700 | 1,543 | IC (CM/FT) | 9650 | 31.66 | ||||||||
Admiralty 30 OD
The unique keel shape is derived from the study of wind tunnel and the testing of towing tanks. As the boat glides through the water, the wings of the keel, has minimum lateral forces to move the aft stern smoothly. This creates a stabilising motion in relation with the weight of the keel which balance the heeling forces caused by wind pressure on the sails. Our philosophy is to create a larger sail area, allowing an increase of the sail area/displacement ratio.
The shape of the hull is also designed and built from the study in the testing of towing tanks to achieve the optimum hydro-dynamic properties and performance.