SLEEPER — ORC Rating | RegattaPages

GPH

607.9

OSN

589.2

LOA

10.57 m

Displacement

3865 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6747

Medium

0.9068

High

1.0291

Triple Offshore

Low

0.867

Medium

1.1124

High

1.2465

Boat Specifications

Dimensions

Length overall: 10.57 m
Beam: 3.34 m
Draft: 2 m
Displacement: 3865 kg
Crew weight: 340 kg
Wetted surface: 23.92 m²

Sails

Mainsail: 35.08 m²
Genoa: 24.96 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 119.94 m²

Design

Type: J 105 Mod
Builder: TILLOTSON-PEARSON
Designer: JOHNSTONE
Year built: 1991
Stability index: 116.2

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.

6,42.9,4.750575,52,5.29,60,5.57,75,5.75,90,5.85,110,6.01,120,5.89,135,5.23,143.3,4.776897,150,4.42
8,40.6,5.636984,52,6.31,60,6.54,75,6.7,90,6.85,110,7.08,120,7.03,135,6.57,146.9,5.789533,150,5.6
10,39,6.189314,52,6.88,60,7.06,75,7.2,90,7.23,110,7.62,120,7.64,135,7.38,148.2,6.742028,150,6.62
12,37.6,6.386553,52,7.13,60,7.32,75,7.52,90,7.56,110,8,120,8.16,135,7.97,150,7.34,150.5,7.307357
14,37.2,6.515763,52,7.25,60,7.47,75,7.77,90,7.9,110,8.29,120,8.64,135,8.58,148.5,7.928315,150,7.8
16,37,6.573712,52,7.33,60,7.56,75,7.94,90,8.19,110,8.57,120,9.02,135,9.28,146.4,8.620263,150,8.29
20,37.6,6.676851,52,7.41,60,7.66,75,8.14,90,8.61,110,9.1,120,9.79,135,11.14,142.6,10.661939,150,9.78

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.29	5.57	5.75	5.85	6.01	5.89	5.23	4.42
8	6.31	6.54	6.7	6.85	7.08	7.03	6.57	5.6
10	6.88	7.06	7.2	7.23	7.62	7.64	7.38	6.62
12	7.13	7.32	7.52	7.56	8	8.16	7.97	7.34
14	7.25	7.47	7.77	7.9	8.29	8.64	8.58	7.8
16	7.33	7.56	7.94	8.19	8.57	9.02	9.28	8.29
20	7.41	7.66	8.14	8.61	9.1	9.79	11.14	9.78

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.48	143.3°	3.83
8	40.6°	4.28	146.9°	4.85
10	39°	4.81	148.2°	5.73
12	37.6°	5.06	150.5°	6.36
14	37.2°	5.19	148.5°	6.76
16	37°	5.25	146.4°	7.18
20	37.6°	5.29	142.6°	8.47

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