OSPREY — ORC Rating | RegattaPages

GPH

661.5

OSN

644.2

LOA

8.032 m

Displacement

1438 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7093

Medium

0.9299

High

1.0588

Triple Offshore

Low

0.9092

Medium

1.1407

High

1.2863

Boat Specifications

Dimensions

Length overall: 8.032 m
Beam: 2.49 m
Draft: 1.5 m
Displacement: 1438 kg
Crew weight: 340 kg
Wetted surface: 13.57 m²

Sails

Mainsail: 21.53 m²
Genoa: 13.98 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 64.99 m²

Design

Type: J-80 ODR
Builder: WATERLINE
Designer: JOHNSTONE
Year built: 1997

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.

6,42.2,4.346625,52,4.88,60,5.15,75,5.37,90,5.57,110,5.68,120,5.54,135,4.97,144.9,4.473509,150,4.22
8,41.2,5.209891,52,5.81,60,6.01,75,6.14,90,6.33,110,6.48,120,6.41,135,6.07,147.8,5.412476,150,5.29
10,38.8,5.658649,52,6.23,60,6.38,75,6.52,90,6.58,110,6.99,120,6.99,135,6.66,150,6.108366
12,37.7,5.801142,52,6.4,60,6.59,75,6.84,90,6.9,110,7.36,120,7.59,135,7.26,150,6.58,150.8,6.541248
14,37.4,5.865954,52,6.47,60,6.7,75,7.1,90,7.31,110,7.68,120,8.07,135,7.95,150,7,176.5,6.171511
16,37,5.897559,52,6.51,60,6.77,75,7.25,90,7.66,110,8,120,8.48,135,8.81,144.2,8.112802,150,7.6
20,37.1,5.980562,52,6.64,60,6.93,75,7.37,90,8.06,110,8.64,120,9.31,135,10.78,140.7,10.842032,150,9.69

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.88	5.15	5.37	5.57	5.68	5.54	4.97	4.22
8	5.81	6.01	6.14	6.33	6.48	6.41	6.07	5.29
10	6.23	6.38	6.52	6.58	6.99	6.99	6.66	6.11
12	6.4	6.59	6.84	6.9	7.36	7.59	7.26	6.58
14	6.47	6.7	7.1	7.31	7.68	8.07	7.95	7
16	6.51	6.77	7.25	7.66	8	8.48	8.81	7.6
20	6.64	6.93	7.37	8.06	8.64	9.31	10.78	9.69

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.2°	3.22	144.9°	3.66
8	41.2°	3.92	147.8°	4.58
10	38.8°	4.41	150°	5.29
12	37.7°	4.59	150.8°	5.71
14	37.4°	4.66	176.5°	6.16
16	37°	4.71	144.2°	6.58
20	37.1°	4.77	140.7°	8.39

Loading polar chart…