Bird — ORC Rating | RegattaPages

GPH

732

OSN

711.7

LOA

8.63 m

Displacement

3632 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.564

Medium

0.7565

High

0.8545

Triple Offshore

Low

0.7217

Medium

0.9237

High

1.0164

Boat Specifications

Dimensions

Length overall: 8.63 m
Beam: 2.86 m
Draft: 1.74 m
Displacement: 3632 kg
Crew weight: 435 kg
Wetted surface: 18.56 m²

Sails

Mainsail: 19.91 m²
Genoa: 26.53 m²
Spinnaker: 52.46 m²
Asymmetric spinnaker: 0 m²

Design

Type: CUMULUS
Builder: Albin Marin AB
Designer: Peter Norlin
Year built: 1968

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.

6,41.6,3.998406,52,4.51,60,4.74,75,4.91,90,4.85,110,4.84,120,4.69,135,4.27,148,3.749787,150,3.68
8,40.5,4.655408,52,5.29,60,5.55,75,5.73,90,5.72,110,5.81,120,5.68,135,5.19,150,4.59,153,4.466858
10,40.5,5.234046,52,5.82,60,5.98,75,6.11,90,6.21,110,6.28,120,6.21,135,5.94,150,5.38,154,5.218103
12,40.1,5.52998,52,6.04,60,6.19,75,6.33,90,6.44,110,6.58,120,6.52,135,6.32,150,6.01,166,5.513783
14,39.4,5.577602,52,6.14,60,6.31,75,6.49,90,6.56,110,6.86,120,6.81,135,6.61,150,6.34,180,5.92
16,39.4,5.616425,52,6.17,60,6.36,75,6.61,90,6.74,110,7.09,120,7.12,135,6.92,150,6.61,180,6.27
20,40.7,5.592676,52,6.16,60,6.36,75,6.71,90,7.03,110,7.33,120,7.58,135,7.53,150,7.19,180,6.8

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.51	4.74	4.91	4.85	4.84	4.69	4.27	3.68
8	5.29	5.55	5.73	5.72	5.81	5.68	5.19	4.59
10	5.82	5.98	6.11	6.21	6.28	6.21	5.94	5.38
12	6.04	6.19	6.33	6.44	6.58	6.52	6.32	6.01
14	6.14	6.31	6.49	6.56	6.86	6.81	6.61	6.34
16	6.17	6.36	6.61	6.74	7.09	7.12	6.92	6.61
20	6.16	6.36	6.71	7.03	7.33	7.58	7.53	7.19

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.6°	2.99	148°	3.18
8	40.5°	3.54	153°	3.98
10	40.5°	3.98	154°	4.69
12	40.1°	4.23	166°	5.35
14	39.4°	4.31	180°	5.92
16	39.4°	4.34	180°	6.27
20	40.7°	4.24	180°	6.8

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