DOUBLE JEOPARDY — ORC Rating

GPH

649.1

OSN

630.6

LOA

10.117 m

Displacement

3092 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6261

Medium

0.8544

High

0.9742

Triple Offshore

Low

0.811

Medium

1.0425

High

1.1616

Boat Specifications

Dimensions

Length overall: 10.117 m
Beam: 2.85 m
Draft: 1.79 m
Displacement: 3092 kg
Crew weight: 580 kg
Wetted surface: 20.52 m²

Sails

Mainsail: 31 m²
Genoa: 30.73 m²
Spinnaker: 58.31 m²
Asymmetric spinnaker: 0 m²

Design

Type: TAR10/LS 10
Builder: TARTAN
Designer: S&S
Year built: 1978
Stability index: 126.8

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.

6,43,4.67626,52,5.21,60,5.51,75,5.75,90,5.66,110,5.41,120,5.22,135,4.67,145.1,4.096802,150,3.88
8,41.8,5.566913,52,6.17,60,6.39,75,6.53,90,6.52,110,6.49,120,6.33,135,5.76,150,4.95,150.2,4.932208
10,39.4,6.056421,52,6.64,60,6.78,75,6.9,90,6.93,110,7,120,6.9,135,6.57,150,5.91,151.1,5.848324
12,37.8,6.176003,52,6.8,60,6.96,75,7.16,90,7.22,110,7.43,120,7.33,135,7.01,150,6.62,159.2,6.279246
14,37.6,6.260337,52,6.87,60,7.05,75,7.35,90,7.53,110,7.86,120,7.81,135,7.44,150,7.03,174.8,6.496738
16,37.5,6.302362,52,6.9,60,7.1,75,7.46,90,7.8,110,8.18,120,8.31,135,7.93,150,7.43,179,6.901051
20,37.8,6.340528,52,6.94,60,7.13,75,7.55,90,8.08,110,8.64,120,9.19,135,9.11,150,8.38,177.2,7.679168

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.21	5.51	5.75	5.66	5.41	5.22	4.67	3.88
8	6.17	6.39	6.53	6.52	6.49	6.33	5.76	4.95
10	6.64	6.78	6.9	6.93	7	6.9	6.57	5.91
12	6.8	6.96	7.16	7.22	7.43	7.33	7.01	6.62
14	6.87	7.05	7.35	7.53	7.86	7.81	7.44	7.03
16	6.9	7.1	7.46	7.8	8.18	8.31	7.93	7.43
20	6.94	7.13	7.55	8.08	8.64	9.19	9.11	8.38

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.42	145.1°	3.36
8	41.8°	4.15	150.2°	4.28
10	39.4°	4.68	151.1°	5.12
12	37.8°	4.88	159.2°	5.87
14	37.6°	4.96	174.8°	6.47
16	37.5°	5	179°	6.9
20	37.8°	5.01	177.2°	7.67

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