Siiri — ORC Rating | RegattaPages

GPH

677.6

OSN

660.2

LOA

9.85 m

Displacement

2900 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5985

Medium

0.8121

High

0.9239

Triple Offshore

Low

0.7769

Medium

0.9989

High

1.1094

Boat Specifications

Dimensions

Length overall: 9.85 m
Beam: 2.57 m
Draft: 1.45 m
Displacement: 2900 kg
Crew weight: 430 kg
Wetted surface: 17.99 m²

Sails

Mainsail: 25.45 m²
Genoa: 23.95 m²
Spinnaker: 54.63 m²
Asymmetric spinnaker: 0 m²

Design

Type: H 323
Designer: Hans Groop
Year built: 1988

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.

6,42.8,4.374907,52,4.93,60,5.24,75,5.5,90,5.44,110,5.27,120,5.06,135,4.46,146.5,3.945384,150,3.8
8,42.4,5.240669,52,5.85,60,6.11,75,6.29,90,6.31,110,6.32,120,6.18,135,5.59,150,4.81,151,4.767786
10,41.2,5.768094,52,6.33,60,6.51,75,6.66,90,6.71,110,6.81,120,6.73,135,6.45,150,5.761956
12,40.1,5.922177,52,6.5,60,6.69,75,6.89,90,6.98,110,7.19,120,7.13,135,6.86,150,6.48,160,6.10838
14,39.4,5.965834,52,6.58,60,6.77,75,7.06,90,7.24,110,7.56,120,7.56,135,7.26,150,6.86,180,6.34
16,39.4,6.004657,52,6.61,60,6.82,75,7.17,90,7.48,110,7.8,120,7.99,135,7.7,150,7.23,180,6.75
20,40.1,6.079056,52,6.65,60,6.85,75,7.26,90,7.76,110,8.18,120,8.62,135,8.71,150,8.08,180,7.47

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.93	5.24	5.5	5.44	5.27	5.06	4.46	3.8
8	5.85	6.11	6.29	6.31	6.32	6.18	5.59	4.81
10	6.33	6.51	6.66	6.71	6.81	6.73	6.45	5.76
12	6.5	6.69	6.89	6.98	7.19	7.13	6.86	6.48
14	6.58	6.77	7.06	7.24	7.56	7.56	7.26	6.86
16	6.61	6.82	7.17	7.48	7.8	7.99	7.7	7.23
20	6.65	6.85	7.26	7.76	8.18	8.62	8.71	8.08

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.21	146.5°	3.29
8	42.4°	3.87	151°	4.17
10	41.2°	4.34	150°	4.99
12	40.1°	4.53	160°	5.74
14	39.4°	4.61	180°	6.34
16	39.4°	4.64	180°	6.75
20	40.1°	4.65	180°	7.47

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