Blue: ORC Rating

GPH

808.1

OSN

782.2

LOA

6.4 m

Displacement

1268 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.4937

Medium

0.6781

High

0.7959

Triple Offshore

Low

0.6373

Medium

0.8423

High

0.9626

Boat Specifications

Dimensions

Length overall: 6.4 m
Beam: 2.43 m
Draft: 1.81 m
Displacement: 1268 kg
Crew weight: 285 kg
Wetted surface: 12.2 m²

Sails

Mainsail: 16.15 m²
Genoa: 9.27 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 33.73 m²

Design

Type: First 20
Builder: Beneteau
Year built: 1999
Stability index: 87.8

Performance data

Polar CSV

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

6,42.4,3.412529,52,3.82,60,4.01,75,4.15,90,4.47,110,4.48,120,4.25,135,3.84,145.2,3.470746,150,3.29
8,41.4,4.106059,52,4.58,60,4.78,75,5.03,90,5.33,110,5.36,120,5.24,135,4.77,146.2,4.332211,150,4.15
10,40.3,4.576039,52,5.11,60,5.29,75,5.54,90,5.81,110,5.87,120,5.78,135,5.52,146,5.114364,150,4.9
12,38.8,4.927259,52,5.46,60,5.6,75,5.75,90,6.13,110,6.29,120,6.21,135,5.94,150,5.41,171.2,4.755986
14,37.5,5.117518,52,5.67,60,5.82,75,6,90,6.3,110,6.68,120,6.63,135,6.35,150,5.76,174.8,5.251614
16,37.2,5.172436,52,5.76,60,5.94,75,6.22,90,6.43,110,7,120,7.05,135,6.75,150,6.07,176.3,5.631739
20,37.8,5.188855,52,5.81,60,6.03,75,6.43,90,6.77,110,7.43,120,7.9,135,7.69,150,6.71,177.2,6.237447

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.82	4.01	4.15	4.47	4.48	4.25	3.84	3.29
8	4.58	4.78	5.03	5.33	5.36	5.24	4.77	4.15
10	5.11	5.29	5.54	5.81	5.87	5.78	5.52	4.9
12	5.46	5.6	5.75	6.13	6.29	6.21	5.94	5.41
14	5.67	5.82	6	6.3	6.68	6.63	6.35	5.76
16	5.76	5.94	6.22	6.43	7	7.05	6.75	6.07
20	5.81	6.03	6.43	6.77	7.43	7.9	7.69	6.71

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	2.52	145.2°	2.85
8	41.4°	3.08	146.2°	3.6
10	40.3°	3.49	146°	4.24
12	38.8°	3.84	171.2°	4.7
14	37.5°	4.06	174.8°	5.23
16	37.2°	4.12	176.3°	5.62
20	37.8°	4.1	177.2°	6.23

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°	3.82	4.58	5.11	5.46	5.67	5.76	5.81
60°	4.01	4.78	5.29	5.60	5.82	5.94	6.03
75°	4.15	5.03	5.54	5.75	6.00	6.22	6.43
90°	4.47	5.33	5.81	6.13	6.30	6.43	6.77
110°	4.48	5.36	5.87	6.29	6.68	7.00	7.43
120°	4.25	5.24	5.78	6.21	6.63	7.05	7.90
135°	3.84	4.77	5.52	5.94	6.35	6.75	7.69
150°	3.29	4.15	4.90	5.41	5.76	6.07	6.71