Neptune: ORC Rating

GPH

633.1

OSN

614.5

LOA

11.26 m

Displacement

7000 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7111

Medium

0.9772

High

1.1386

Triple Offshore

Low

0.922

Medium

1.2077

High

1.3593

Boat Specifications

Dimensions

Length overall: 11.26 m
Beam: 3.59 m
Draft: 1.92 m
Displacement: 7000 kg
Crew weight: 708 kg
Wetted surface: 29.78 m²

Sails

Mainsail: 41.62 m²
Genoa: 40.9 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 98.25 m²

Design

Type: Hanse 371
Builder: YZ Greifswald
Designer: Judel Vrolijk
Year built: 2001

Performance data

Polar CSV

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

6,43.4,4.610675,52,5.14,60,5.45,75,5.7,90,5.62,110,5.57,120,5.39,135,4.82,145,4.284919,150,4.06
8,41.8,5.43277,52,6.11,60,6.43,75,6.67,90,6.66,110,6.75,120,6.55,135,5.94,149.9,5.155167,150,5.15
10,41.2,6.113648,52,6.81,60,7.03,75,7.19,90,7.29,110,7.36,120,7.27,135,6.86,150,6.09,151.4,6.013784
12,40.4,6.513133,52,7.15,60,7.33,75,7.48,90,7.59,110,7.73,120,7.66,135,7.39,150,6.9,155.5,6.626656
14,39.4,6.612887,52,7.29,60,7.48,75,7.69,90,7.76,110,8.09,120,8.02,135,7.74,150,7.38,172.2,6.732288
16,39,6.678282,52,7.36,60,7.56,75,7.86,90,8,110,8.42,120,8.42,135,8.12,150,7.71,180,7.21
20,38.6,6.73047,52,7.4,60,7.62,75,8.03,90,8.43,110,8.8,120,9.15,135,8.96,150,8.44,180,7.89

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.14	5.45	5.7	5.62	5.57	5.39	4.82	4.06
8	6.11	6.43	6.67	6.66	6.75	6.55	5.94	5.15
10	6.81	7.03	7.19	7.29	7.36	7.27	6.86	6.09
12	7.15	7.33	7.48	7.59	7.73	7.66	7.39	6.9
14	7.29	7.48	7.69	7.76	8.09	8.02	7.74	7.38
16	7.36	7.56	7.86	8	8.42	8.42	8.12	7.71
20	7.4	7.62	8.03	8.43	8.8	9.15	8.96	8.44

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.4°	3.35	145°	3.51
8	41.8°	4.05	149.9°	4.46
10	41.2°	4.6	151.4°	5.28
12	40.4°	4.96	155.5°	6.03
14	39.4°	5.11	172.2°	6.67
16	39°	5.19	180°	7.21
20	38.6°	5.26	180°	7.89

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°	5.14	6.11	6.81	7.15	7.29	7.36	7.40
60°	5.45	6.43	7.03	7.33	7.48	7.56	7.62
75°	5.70	6.67	7.19	7.48	7.69	7.86	8.03
90°	5.62	6.66	7.29	7.59	7.76	8.00	8.43
110°	5.57	6.75	7.36	7.73	8.09	8.42	8.80
120°	5.39	6.55	7.27	7.66	8.02	8.42	9.15
135°	4.82	5.94	6.86	7.39	7.74	8.12	8.96
150°	4.06	5.15	6.09	6.90	7.38	7.71	8.44