ROSSKO: ORC Rating

GPH

596.1

OSN

576.8

LOA

10.82 m

Displacement

4963 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7622

Medium

1.0473

High

1.2117

Triple Offshore

Low

0.9814

Medium

1.2808

High

1.4522

Boat Specifications

Dimensions

Length overall: 10.82 m
Beam: 3.68 m
Draft: 2.17 m
Displacement: 4963 kg
Crew weight: 680 kg
Wetted surface: 26.41 m²

Sails

Mainsail: 38.65 m²
Genoa: 28.77 m²
Spinnaker: 118.42 m²
Asymmetric spinnaker: 0 m²

Design

Type: JPK 10.80
Builder: JPK COMPOSITES
Designer: JPK DESIGN
Year built: 2013

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,42.5,4.692942,52,5.26,60,5.55,75,5.79,90,5.88,110,6.01,120,5.89,135,5.35,141.2,5.02991,150,4.53
8,41,5.618055,52,6.33,60,6.62,75,6.84,90,7.05,110,7.2,120,7.1,135,6.62,147.9,5.772487,150,5.65
10,40.1,6.366667,52,7.06,60,7.25,75,7.39,90,7.54,110,7.77,120,7.71,135,7.41,149.8,6.699258,150,6.69
12,38.5,6.733894,52,7.41,60,7.58,75,7.73,90,7.75,110,8.24,120,8.24,135,7.9,150,7.42,157.3,7.089138
14,37.6,6.853554,52,7.57,60,7.78,75,8.03,90,8.04,110,8.56,120,8.83,135,8.44,150,7.86,173.8,7.16189
16,37.4,6.923337,52,7.64,60,7.88,75,8.29,90,8.41,110,8.85,120,9.28,135,9.07,150,8.35,180,7.61
20,36.9,7.02777,52,7.71,60,7.94,75,8.53,90,9.07,110,9.43,120,10.01,135,10.72,150,9.53,180,8.5

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.26	5.55	5.79	5.88	6.01	5.89	5.35	4.53
8	6.33	6.62	6.84	7.05	7.2	7.1	6.62	5.65
10	7.06	7.25	7.39	7.54	7.77	7.71	7.41	6.69
12	7.41	7.58	7.73	7.75	8.24	8.24	7.9	7.42
14	7.57	7.78	8.03	8.04	8.56	8.83	8.44	7.86
16	7.64	7.88	8.29	8.41	8.85	9.28	9.07	8.35
20	7.71	7.94	8.53	9.07	9.43	10.01	10.72	9.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.46	141.2°	3.92
8	41°	4.24	147.9°	4.89
10	40.1°	4.87	149.8°	5.79
12	38.5°	5.27	157.3°	6.54
14	37.6°	5.43	173.8°	7.12
16	37.4°	5.5	180°	7.61
20	36.9°	5.62	180°	8.5

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.26	6.33	7.06	7.41	7.57	7.64	7.71
60°	5.55	6.62	7.25	7.58	7.78	7.88	7.94
75°	5.79	6.84	7.39	7.73	8.03	8.29	8.53
90°	5.88	7.05	7.54	7.75	8.04	8.41	9.07
110°	6.01	7.20	7.77	8.24	8.56	8.85	9.43
120°	5.89	7.10	7.71	8.24	8.83	9.28	10.01
135°	5.35	6.62	7.41	7.90	8.44	9.07	10.72
150°	4.53	5.65	6.69	7.42	7.86	8.35	9.53