Merenhuiske — ORC Rating

GPH

660

OSN

643.3

LOA

8 m

Displacement

1438 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6291

Medium

0.8261

High

0.9385

Triple Offshore

Low

0.8088

Medium

1.0167

High

1.1469

Boat Specifications

Dimensions

Length overall: 8 m
Beam: 2.49 m
Draft: 1.5 m
Displacement: 1438 kg
Crew weight: 388 kg
Wetted surface: 13.48 m²

Sails

Mainsail: 20.99 m²
Genoa: 13.98 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 64.99 m²

Design

Type: J/80
Builder: J/Boats
Designer: Johnstone
Year built: 1992

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.

6,42.8,4.361278,52,4.91,60,5.2,75,5.42,90,5.58,110,5.72,120,5.58,135,4.99,145,4.480243,150,4.24
8,41.8,5.204728,52,5.81,60,6.03,75,6.18,90,6.35,110,6.5,120,6.44,135,6.1,148,5.424221,150,5.31
10,39.4,5.68113,52,6.24,60,6.39,75,6.54,90,6.62,110,7.05,120,7.04,135,6.7,150,6.13146
12,38.2,5.828033,52,6.42,60,6.62,75,6.87,90,6.95,110,7.45,120,7.67,135,7.31,150,6.62,150.2,6.614691
14,37.9,5.880235,52,6.49,60,6.73,75,7.15,90,7.36,110,7.77,120,8.2,135,8.03,150,7.04,176,6.195091
16,37.9,5.892908,52,6.52,60,6.79,75,7.3,90,7.73,110,8.12,120,8.64,135,8.91,144.2,8.199108,150,7.67
20,38.6,5.988327,52,6.62,60,6.93,75,7.42,90,8.16,110,8.81,120,9.54,135,11.15,140.5,11.145316,150,9.94

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.91	5.2	5.42	5.58	5.72	5.58	4.99	4.24
8	5.81	6.03	6.18	6.35	6.5	6.44	6.1	5.31
10	6.24	6.39	6.54	6.62	7.05	7.04	6.7	6.13
12	6.42	6.62	6.87	6.95	7.45	7.67	7.31	6.62
14	6.49	6.73	7.15	7.36	7.77	8.2	8.03	7.04
16	6.52	6.79	7.3	7.73	8.12	8.64	8.91	7.67
20	6.62	6.93	7.42	8.16	8.81	9.54	11.15	9.94

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.2	145°	3.67
8	41.8°	3.88	148°	4.6
10	39.4°	4.39	150°	5.31
12	38.2°	4.58	150.2°	5.74
14	37.9°	4.64	176°	6.18
16	37.9°	4.65	144.2°	6.65
20	38.6°	4.68	140.5°	8.6

Loading polar chart…