Vimma: ORC Rating

GPH

725.3

OSN

703.6

LOA

7.77 m

Displacement

1800 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5563

Medium

0.7637

High

0.8724

Triple Offshore

Low

0.7217

Medium

0.9345

High

1.0461

Boat Specifications

Dimensions

Length overall: 7.77 m
Beam: 2.52 m
Draft: 1.43 m
Displacement: 1800 kg
Crew weight: 330 kg
Wetted surface: 13.57 m²

Sails

Mainsail: 18.98 m²
Genoa: 14.21 m²
Spinnaker: 41.7 m²
Asymmetric spinnaker: 46.06 m²

Design

Type: ALBIN EXPRESS
Builder: Albin Marin
Designer: PETER NORLIN
Year built: 1978
Stability index: 119.2

Performance data

Polar CSV

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

6,43.6,3.949339,52,4.38,60,4.63,75,4.81,90,5.09,110,5.12,120,4.92,135,4.37,144.8,3.928312,150,3.7
8,42.3,4.678008,52,5.23,60,5.48,75,5.65,90,5.94,110,5.99,120,5.89,135,5.41,149.8,4.674439,150,4.67
10,41.2,5.249763,52,5.75,60,5.92,75,6.04,90,6.32,110,6.42,120,6.34,135,6.1,150,5.55,151.4,5.478466
12,39,5.481596,52,6.01,60,6.15,75,6.29,90,6.56,110,6.84,120,6.78,135,6.49,150,6.12,162.8,5.757484
14,38.8,5.594492,52,6.13,60,6.3,75,6.52,90,6.72,110,7.21,120,7.23,135,6.93,150,6.48,177.2,6.007172
16,38.8,5.632986,52,6.17,60,6.37,75,6.71,90,6.88,110,7.48,120,7.68,135,7.39,150,6.88,179,6.350967
20,39.4,5.668189,52,6.19,60,6.38,75,6.85,90,7.3,110,7.89,120,8.48,135,8.59,150,7.78,177.2,7.098475

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.38	4.63	4.81	5.09	5.12	4.92	4.37	3.7
8	5.23	5.48	5.65	5.94	5.99	5.89	5.41	4.67
10	5.75	5.92	6.04	6.32	6.42	6.34	6.1	5.55
12	6.01	6.15	6.29	6.56	6.84	6.78	6.49	6.12
14	6.13	6.3	6.52	6.72	7.21	7.23	6.93	6.48
16	6.17	6.37	6.71	6.88	7.48	7.68	7.39	6.88
20	6.19	6.38	6.85	7.3	7.89	8.48	8.59	7.78

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	2.86	144.8°	3.21
8	42.3°	3.46	149.8°	4.04
10	41.2°	3.95	151.4°	4.81
12	39°	4.26	162.8°	5.5
14	38.8°	4.36	177.2°	6
16	38.8°	4.39	179°	6.35
20	39.4°	4.38	177.2°	7.09

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°	4.38	5.23	5.75	6.01	6.13	6.17	6.19
60°	4.63	5.48	5.92	6.15	6.30	6.37	6.38
75°	4.81	5.65	6.04	6.29	6.52	6.71	6.85
90°	5.09	5.94	6.32	6.56	6.72	6.88	7.30
110°	5.12	5.99	6.42	6.84	7.21	7.48	7.89
120°	4.92	5.89	6.34	6.78	7.23	7.68	8.48
135°	4.37	5.41	6.10	6.49	6.93	7.39	8.59
150°	3.70	4.67	5.55	6.12	6.48	6.88	7.78