Swift Ness: ORC Rating

GPH

571.1

OSN

553.4

LOA

11.121 m

Displacement

4543 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7254

Medium

0.9678

High

1.0947

Triple Offshore

Low

0.9279

Medium

1.1816

High

1.321

Boat Specifications

Dimensions

Length overall: 11.121 m
Beam: 3.3 m
Draft: 2.2 m
Displacement: 4543 kg
Crew weight: 763 kg
Wetted surface: 26.45 m²

Sails

Mainsail: 39.02 m²
Genoa: 32.83 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 130.3 m²

Design

Type: J 111
Builder: J BOATS
Designer: JOHNSTONE
Year built: 2010

Performance data

Polar CSV

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

6,42.5,5.167662,52,5.77,60,6.06,75,6.24,90,6.15,110,6.3,120,6.15,135,5.53,143.3,5.051288,150,4.67
8,40.5,6.141456,52,6.84,60,7.05,75,7.18,90,7.23,110,7.43,120,7.36,135,6.88,146.4,6.14704,150,5.91
10,38.2,6.667881,52,7.37,60,7.54,75,7.66,90,7.64,110,7.99,120,7.99,135,7.68,149.4,6.993965,150,6.95
12,36.9,6.852701,52,7.6,60,7.79,75,7.99,90,8.02,110,8.39,120,8.54,135,8.29,150,7.65,150.9,7.58779
14,36.2,6.952015,52,7.71,60,7.92,75,8.24,90,8.37,110,8.7,120,9.04,135,8.92,148.9,8.186698,150,8.1
16,36,7.033227,52,7.79,60,8.02,75,8.4,90,8.68,110,8.99,120,9.46,135,9.65,146.6,8.911803,150,8.59
20,35.9,7.110746,52,7.89,60,8.14,75,8.61,90,9.13,110,9.57,120,10.29,135,11.53,142.9,10.970632,150,10.1
24,36.8,7.130981,52,7.9,60,8.16,75,8.73,90,9.41,110,10.14,120,11.15,135,13.37,144,14.054093,150,13.12

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.77	6.06	6.24	6.15	6.3	6.15	5.53	4.67
8	6.84	7.05	7.18	7.23	7.43	7.36	6.88	5.91
10	7.37	7.54	7.66	7.64	7.99	7.99	7.68	6.95
12	7.6	7.79	7.99	8.02	8.39	8.54	8.29	7.65
14	7.71	7.92	8.24	8.37	8.7	9.04	8.92	8.1
16	7.79	8.02	8.4	8.68	8.99	9.46	9.65	8.59
20	7.89	8.14	8.61	9.13	9.57	10.29	11.53	10.1
24	7.9	8.16	8.73	9.41	10.14	11.15	13.37	13.12

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.81	143.3°	4.05
8	40.5°	4.67	146.4°	5.12
10	38.2°	5.24	149.4°	6.02
12	36.9°	5.48	150.9°	6.63
14	36.2°	5.61	148.9°	7.01
16	36°	5.69	146.6°	7.44
20	35.9°	5.76	142.9°	8.75
24	36.8°	5.71	144°	11.37

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 kt24 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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.77	6.84	7.37	7.60	7.71	7.79	7.89	7.90
60°	6.06	7.05	7.54	7.79	7.92	8.02	8.14	8.16
75°	6.24	7.18	7.66	7.99	8.24	8.40	8.61	8.73
90°	6.15	7.23	7.64	8.02	8.37	8.68	9.13	9.41
110°	6.30	7.43	7.99	8.39	8.70	8.99	9.57	10.14
120°	6.15	7.36	7.99	8.54	9.04	9.46	10.29	11.15
135°	5.53	6.88	7.68	8.29	8.92	9.65	11.53	13.37
150°	4.67	5.91	6.95	7.65	8.10	8.59	10.10	13.12