Siiri — ORC Rating | RegattaPages

GPH

696.6

OSN

675.3

LOA

9.85 m

Displacement

2900 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5767

Medium

0.794

High

0.9121

Triple Offshore

Low

0.7484

Medium

0.976

High

1.0868

Boat Specifications

Dimensions

Length overall: 9.85 m
Beam: 2.57 m
Draft: 1.46 m
Displacement: 2900 kg
Crew weight: 430 kg
Wetted surface: 17.95 m²

Sails

Mainsail: 24.45 m²
Genoa: 20.03 m²
Spinnaker: 45.67 m²
Asymmetric spinnaker: 0 m²

Design

Type: H 323
Designer: Hans Groop
Year built: 1988
Stability index: 120.4

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.

6,44.1,4.330715,52,4.79,60,5.06,75,5.22,90,5.11,110,5.09,120,4.9,135,4.31,146,3.739276,150,3.58
8,41.7,5.08948,52,5.67,60,5.9,75,6.06,90,6.07,110,6.13,120,5.96,135,5.36,150,4.63,150.5,4.607312
10,40,5.547981,52,6.16,60,6.35,75,6.5,90,6.58,110,6.68,120,6.59,135,6.23,150,5.57,152,5.458988
12,39.3,5.776386,52,6.39,60,6.57,75,6.75,90,6.84,110,7.04,120,6.98,135,6.71,150,6.3,160.4,5.912591
14,38.8,5.863951,52,6.49,60,6.68,75,6.92,90,7.04,110,7.35,120,7.34,135,7.08,150,6.73,173.6,6.19863
16,38.7,5.932624,52,6.55,60,6.75,75,7.04,90,7.23,110,7.6,120,7.67,135,7.46,150,7.08,179,6.611007
20,39,5.970564,52,6.6,60,6.81,75,7.17,90,7.51,110,7.96,120,8.33,135,8.27,150,7.79,179,7.281109

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.79	5.06	5.22	5.11	5.09	4.9	4.31	3.58
8	5.67	5.9	6.06	6.07	6.13	5.96	5.36	4.63
10	6.16	6.35	6.5	6.58	6.68	6.59	6.23	5.57
12	6.39	6.57	6.75	6.84	7.04	6.98	6.71	6.3
14	6.49	6.68	6.92	7.04	7.35	7.34	7.08	6.73
16	6.55	6.75	7.04	7.23	7.6	7.67	7.46	7.08
20	6.6	6.81	7.17	7.51	7.96	8.33	8.27	7.79

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.1°	3.11	146°	3.1
8	41.7°	3.8	150.5°	4.01
10	40°	4.25	152°	4.82
12	39.3°	4.47	160.4°	5.57
14	38.8°	4.57	173.6°	6.16
16	38.7°	4.63	179°	6.61
20	39°	4.64	179°	7.28

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