BORA: ORC Rating

GPH

731.1

OSN

710.8

LOA

7.62 m

Displacement

1686 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5633

Medium

0.7605

High

0.8619

Triple Offshore

Low

0.7237

Medium

0.923

High

1.0253

Boat Specifications

Dimensions

Length overall: 7.62 m
Beam: 2.71 m
Draft: 1.56 m
Displacement: 1686 kg
Crew weight: 300 kg
Wetted surface: 12.54 m²

Sails

Mainsail: 19.96 m²
Genoa: 11.79 m²
Spinnaker: 32.35 m²
Asymmetric spinnaker: 0 m²

Design

Type: POLARIS
Builder: SET
Year built: 1984

Performance data

Polar CSV

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

6,41.6,3.985033,52,4.52,60,4.76,75,4.93,90,4.99,110,4.95,120,4.76,135,4.28,148,3.737996,150,3.66
8,41.2,4.731432,52,5.31,60,5.52,75,5.66,90,5.79,110,5.8,120,5.68,135,5.23,150,4.59,152,4.507629
10,39.8,5.219427,52,5.73,60,5.87,75,5.99,90,6.17,110,6.21,120,6.12,135,5.86,150,5.4,155,5.19691
12,38.2,5.433559,52,5.95,60,6.09,75,6.23,90,6.46,110,6.58,120,6.48,135,6.22,150,5.92,179.5,5.370204
14,37.9,5.525393,52,6.07,60,6.24,75,6.46,90,6.63,110,6.93,120,6.85,135,6.58,150,6.25,180,5.87
16,37.9,5.550739,52,6.12,60,6.33,75,6.64,90,6.8,110,7.24,120,7.21,135,6.94,150,6.59,180,6.2
20,38.6,5.578869,52,6.13,60,6.37,75,6.81,90,7.18,110,7.58,120,7.9,135,7.68,150,7.26,180,6.85

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.52	4.76	4.93	4.99	4.95	4.76	4.28	3.66
8	5.31	5.52	5.66	5.79	5.8	5.68	5.23	4.59
10	5.73	5.87	5.99	6.17	6.21	6.12	5.86	5.4
12	5.95	6.09	6.23	6.46	6.58	6.48	6.22	5.92
14	6.07	6.24	6.46	6.63	6.93	6.85	6.58	6.25
16	6.12	6.33	6.64	6.8	7.24	7.21	6.94	6.59
20	6.13	6.37	6.81	7.18	7.58	7.9	7.68	7.26

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.6°	2.98	148°	3.17
8	41.2°	3.56	152°	3.98
10	39.8°	4.01	155°	4.71
12	38.2°	4.27	179.5°	5.37
14	37.9°	4.36	180°	5.87
16	37.9°	4.38	180°	6.2
20	38.6°	4.36	180°	6.85

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°	4.52	5.31	5.73	5.95	6.07	6.12	6.13
60°	4.76	5.52	5.87	6.09	6.24	6.33	6.37
75°	4.93	5.66	5.99	6.23	6.46	6.64	6.81
90°	4.99	5.79	6.17	6.46	6.63	6.80	7.18
110°	4.95	5.80	6.21	6.58	6.93	7.24	7.58
120°	4.76	5.68	6.12	6.48	6.85	7.21	7.90
135°	4.28	5.23	5.86	6.22	6.58	6.94	7.68
150°	3.66	4.59	5.40	5.92	6.25	6.59	7.26