L4: ORC Rating | Offwind

GPH

346

OSN

341.1

LOA

21.5 m

Displacement

12104 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

1.1056

Medium

1.4967

High

1.8384

Triple Offshore

Low

1.4905

Medium

1.9501

High

2.336

Boat Specifications

Dimensions

Length overall: 21.5 m
Beam: 5.7 m
Draft: 4.43 m
Displacement: 12104 kg
Crew weight: 1100 kg
Wetted surface: 78.08 m²

Sails

Mainsail: 172.86 m²
Genoa: 99.24 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 494.42 m²

Design

Type: VOLVO OPEN 70 MOD
Year built: 2008
Stability index: 124.3

Performance data

Polar CSV

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

6,46.6,8.994487,52,9.75,60,10.5,75,11.33,90,11.75,110,11.2,120,10.45,128.9,9.268061,135,8.23,150,6.72
8,42.3,10.099629,52,11.08,60,11.66,75,12.7,90,13.32,110,13.35,120,12.24,135,10.1,141.4,9.443131,150,8.52
10,38.2,10.447195,52,11.79,60,12.47,75,13.69,90,14.53,110,14.93,120,14.43,135,11.77,146.4,10.589236,150,10.18
12,36.7,10.726193,52,12.41,60,13.19,75,14.62,90,15.65,110,16.22,120,15.85,135,13.71,143.9,12.364016,150,11.53
14,35.4,10.918533,52,12.94,60,13.78,75,15.48,90,16.78,110,17.61,120,17.34,135,15.2,141.2,14.794608,150,13.32
16,35.2,11.136336,52,13.24,60,13.99,75,16.14,90,17.66,110,18.55,120,18.38,135,16.76,143.6,16.449375,150,15.28
20,37.8,12.086236,52,14.1,60,15.11,75,17.22,90,18.38,110,20.32,120,20.73,135,19.55,148.5,19.316472,150,19.02

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	9.75	10.5	11.33	11.75	11.2	10.45	8.23	6.72
8	11.08	11.66	12.7	13.32	13.35	12.24	10.1	8.52
10	11.79	12.47	13.69	14.53	14.93	14.43	11.77	10.18
12	12.41	13.19	14.62	15.65	16.22	15.85	13.71	11.53
14	12.94	13.78	15.48	16.78	17.61	17.34	15.2	13.32
16	13.24	13.99	16.14	17.66	18.55	18.38	16.76	15.28
20	14.1	15.11	17.22	18.38	20.32	20.73	19.55	19.02

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46.6°	6.18	128.9°	5.82
8	42.3°	7.47	141.4°	7.38
10	38.2°	8.21	146.4°	8.82
12	36.7°	8.6	143.9°	9.99
14	35.4°	8.9	141.2°	11.53
16	35.2°	9.1	143.6°	13.24
20	37.8°	9.55	148.5°	16.47

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°	9.75	11.08	11.79	12.41	12.94	13.24	14.10
60°	10.50	11.66	12.47	13.19	13.78	13.99	15.11
75°	11.33	12.70	13.69	14.62	15.48	16.14	17.22
90°	11.75	13.32	14.53	15.65	16.78	17.66	18.38
110°	11.20	13.35	14.93	16.22	17.61	18.55	20.32
120°	10.45	12.24	14.43	15.85	17.34	18.38	20.73
135°	8.23	10.10	11.77	13.71	15.20	16.76	19.55
150°	6.72	8.52	10.18	11.53	13.32	15.28	19.02