DARK STAR: ORC Rating

GPH

490.3

OSN

477.7

LOA

13.41 m

Displacement

5390 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8295

Medium

1.109

High

1.3038

Triple Offshore

Low

1.0771

Medium

1.3705

High

1.5794

Boat Specifications

Dimensions

Length overall: 13.41 m
Beam: 3.92 m
Draft: 2.93 m
Displacement: 5390 kg
Crew weight: 550 kg
Wetted surface: 34.66 m²

Sails

Mainsail: 65.14 m²
Genoa: 42.56 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 181.77 m²

Design

Type: RIPTIDE 44
Designer: Bieker
Year built: 2002
Stability index: 117.9

Performance data

Polar CSV

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

6,43,6.057261,52,6.77,60,7.19,75,7.6,90,7.84,110,7.59,120,7.17,135,6.28,142.4,5.742849,150,5.26
8,41.4,7.145608,52,7.92,60,8.18,75,8.41,90,8.62,110,8.61,120,8.38,135,7.92,143.8,7.224643,150,6.73
10,37.6,7.560366,52,8.41,60,8.64,75,8.88,90,9.21,110,9.43,120,9.21,135,8.82,148.7,8.028473,150,7.92
12,36.4,7.752576,52,8.61,60,8.9,75,9.38,90,9.65,110,10.15,120,10.11,135,9.81,150,8.76,151.8,8.634937
14,35.8,7.853883,52,8.74,60,9.08,75,9.67,90,10.1,110,10.86,120,10.95,135,10.88,149.2,9.697775,150,9.62
16,35,7.971658,52,8.87,60,9.19,75,9.88,90,10.54,110,11.42,120,11.87,135,11.79,146.7,11.079108,150,10.7
20,35,8.118151,52,9.14,60,9.59,75,10.27,90,11.04,110,12.5,120,13.41,135,13.93,146,14.100688,150,13.5

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.77	7.19	7.6	7.84	7.59	7.17	6.28	5.26
8	7.92	8.18	8.41	8.62	8.61	8.38	7.92	6.73
10	8.41	8.64	8.88	9.21	9.43	9.21	8.82	7.92
12	8.61	8.9	9.38	9.65	10.15	10.11	9.81	8.76
14	8.74	9.08	9.67	10.1	10.86	10.95	10.88	9.62
16	8.87	9.19	9.88	10.54	11.42	11.87	11.79	10.7
20	9.14	9.59	10.27	11.04	12.5	13.41	13.93	13.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	4.43	142.4°	4.55
8	41.4°	5.36	143.8°	5.83
10	37.6°	5.99	148.7°	6.86
12	36.4°	6.24	151.8°	7.61
14	35.8°	6.37	149.2°	8.33
16	35°	6.53	146.7°	9.26
20	35°	6.65	146°	11.69

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°	6.77	7.92	8.41	8.61	8.74	8.87	9.14
60°	7.19	8.18	8.64	8.90	9.08	9.19	9.59
75°	7.60	8.41	8.88	9.38	9.67	9.88	10.27
90°	7.84	8.62	9.21	9.65	10.10	10.54	11.04
110°	7.59	8.61	9.43	10.15	10.86	11.42	12.50
120°	7.17	8.38	9.21	10.11	10.95	11.87	13.41
135°	6.28	7.92	8.82	9.81	10.88	11.79	13.93
150°	5.26	6.73	7.92	8.76	9.62	10.70	13.50