Juggerknot: ORC Rating

GPH

612.7

OSN

596.6

LOA

10.757 m

Displacement

5196 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6726

Medium

0.8959

High

1.0102

Triple Offshore

Low

0.8655

Medium

1.1012

High

1.2176

Boat Specifications

Dimensions

Length overall: 10.757 m
Beam: 3.52 m
Draft: 2.14 m
Displacement: 5196 kg
Crew weight: 640 kg
Wetted surface: 26.45 m²

Sails

Mainsail: 36.18 m²
Genoa: 39.93 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 106.61 m²

Design

Type: J-109
Builder: J-Boats
Designer: Rod Johnstone
Year built: 2001

Performance data

Polar CSV

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

6,42.4,4.820874,52,5.41,60,5.72,75,5.97,90,5.9,110,5.85,120,5.69,135,5.13,144.5,4.630792,150,4.35
8,41.2,5.701641,52,6.4,60,6.65,75,6.84,90,6.85,110,6.96,120,6.84,135,6.32,148,5.565722,150,5.45
10,39.8,6.312774,52,6.96,60,7.12,75,7.25,90,7.34,110,7.48,120,7.41,135,7.12,148.5,6.509194,150,6.41
12,38.2,6.527906,52,7.2,60,7.36,75,7.52,90,7.57,110,7.89,120,7.84,135,7.56,150,7.04,150.2,7.029549
14,37.9,6.653283,52,7.29,60,7.47,75,7.73,90,7.86,110,8.26,120,8.32,135,8,150,7.39,174,6.465418
16,37.5,6.680504,52,7.34,60,7.54,75,7.89,90,8.13,110,8.51,120,8.78,135,8.48,150,7.68,177,6.989579
20,37.5,6.730923,52,7.36,60,7.58,75,8.02,90,8.53,110,8.93,120,9.43,135,9.6,150,8.43,178,7.674675

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.41	5.72	5.97	5.9	5.85	5.69	5.13	4.35
8	6.4	6.65	6.84	6.85	6.96	6.84	6.32	5.45
10	6.96	7.12	7.25	7.34	7.48	7.41	7.12	6.41
12	7.2	7.36	7.52	7.57	7.89	7.84	7.56	7.04
14	7.29	7.47	7.73	7.86	8.26	8.32	8	7.39
16	7.34	7.54	7.89	8.13	8.51	8.78	8.48	7.68
20	7.36	7.58	8.02	8.53	8.93	9.43	9.6	8.43

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.56	144.5°	3.77
8	41.2°	4.29	148°	4.72
10	39.8°	4.85	148.5°	5.55
12	38.2°	5.13	150.2°	6.1
14	37.9°	5.25	174°	6.43
16	37.5°	5.3	177°	6.98
20	37.5°	5.34	178°	7.67

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°	5.41	6.40	6.96	7.20	7.29	7.34	7.36
60°	5.72	6.65	7.12	7.36	7.47	7.54	7.58
75°	5.97	6.84	7.25	7.52	7.73	7.89	8.02
90°	5.90	6.85	7.34	7.57	7.86	8.13	8.53
110°	5.85	6.96	7.48	7.89	8.26	8.51	8.93
120°	5.69	6.84	7.41	7.84	8.32	8.78	9.43
135°	5.13	6.32	7.12	7.56	8.00	8.48	9.60
150°	4.35	5.45	6.41	7.04	7.39	7.68	8.43