JOMACA — ORC Rating | RegattaPages

GPH

669.7

OSN

646.8

LOA

10.53 m

Displacement

4327 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5869

Medium

0.8259

High

0.9721

Triple Offshore

Low

0.7627

Medium

1.0206

High

1.1618

Boat Specifications

Dimensions

Length overall: 10.53 m
Beam: 3.33 m
Draft: 1.94 m
Displacement: 4327 kg
Crew weight: 650 kg
Wetted surface: 24.2 m²

Sails

Mainsail: 30.48 m²
Genoa: 29.6 m²
Spinnaker: 63.18 m²
Asymmetric spinnaker: 0 m²

Design

Type: Lavranos 34
Builder: Robertson & Caine
Designer: Angelo Lavranos
Year built: 1986
Stability index: 117.3

Velocity Prediction

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.

6,43.6,4.280752,52,4.79,60,5.09,75,5.31,90,5.22,110,5.18,120,5,135,4.47,146,3.908146,150,3.74
8,41.8,5.084,52,5.74,60,6.05,75,6.29,90,6.27,110,6.32,120,6.13,135,5.53,150,4.8,150.5,4.779655
10,41.4,5.78581,52,6.43,60,6.66,75,6.82,90,6.92,110,6.98,120,6.87,135,6.46,150,5.74,152,5.628873
12,39.6,6.190679,52,6.82,60,6.98,75,7.12,90,7.28,110,7.37,120,7.28,135,7,150,6.53,156.8,6.23412
14,38.7,6.368281,52,7,60,7.17,75,7.36,90,7.51,110,7.77,120,7.67,135,7.36,150,7.01,168.5,6.490295
16,38.2,6.413381,52,7.07,60,7.27,75,7.57,90,7.68,110,8.19,120,8.11,135,7.77,150,7.36,178.4,6.87268
20,38.7,6.445161,52,7.1,60,7.33,75,7.78,90,8.19,110,8.73,120,9.04,135,8.69,150,8.15,178.4,7.552945

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.79	5.09	5.31	5.22	5.18	5	4.47	3.74
8	5.74	6.05	6.29	6.27	6.32	6.13	5.53	4.8
10	6.43	6.66	6.82	6.92	6.98	6.87	6.46	5.74
12	6.82	6.98	7.12	7.28	7.37	7.28	7	6.53
14	7	7.17	7.36	7.51	7.77	7.67	7.36	7.01
16	7.07	7.27	7.57	7.68	8.19	8.11	7.77	7.36
20	7.1	7.33	7.78	8.19	8.73	9.04	8.69	8.15

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.1	146°	3.24
8	41.8°	3.79	150.5°	4.16
10	41.4°	4.34	152°	4.97
12	39.6°	4.77	156.8°	5.73
14	38.7°	4.97	168.5°	6.36
16	38.2°	5.04	178.4°	6.87
20	38.7°	5.03	178.4°	7.55

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