TOM BOY: ORC Rating

GPH

589

OSN

574.3

LOA

10.743 m

Displacement

4245 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6998

Medium

0.932

High

1.0629

Triple Offshore

Low

0.9037

Medium

1.142

High

1.2792

Boat Specifications

Dimensions

Length overall: 10.743 m
Beam: 3.62 m
Draft: 2.24 m
Displacement: 4245 kg
Crew weight: 648 kg
Wetted surface: 24.59 m²

Sails

Mainsail: 42.34 m²
Genoa: 39.27 m²
Spinnaker: 79.02 m²
Asymmetric spinnaker: 0 m²

Design

Type: J/V 35 CR
Builder: TSUBOI
Designer: JUDEL/VROLIJK
Year built: 1998

Performance data

Polar CSV

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

6,42,5.234511,52,5.89,60,6.21,75,6.47,90,6.42,110,5.94,120,5.74,135,5.14,141,4.786746,150,4.3
8,40.5,6.167758,52,6.87,60,7.07,75,7.21,90,7.21,110,7.07,120,6.93,135,6.34,148,5.518555,150,5.4
10,38.2,6.553356,52,7.26,60,7.43,75,7.59,90,7.61,110,7.63,120,7.53,135,7.17,150,6.41,150.5,6.376703
12,37.5,6.730923,52,7.4,60,7.6,75,7.89,90,7.99,110,8.15,120,8.04,135,7.65,150,7.16,157.5,6.829895
14,36.8,6.7813,52,7.48,60,7.71,75,8.11,90,8.37,110,8.65,120,8.62,135,8.15,150,7.62,180,6.95
16,36.8,6.831255,52,7.53,60,7.77,75,8.24,90,8.69,110,9,120,9.24,135,8.73,150,8.08,180,7.45
20,36.8,6.918675,52,7.63,60,7.88,75,8.37,90,9.02,110,9.61,120,10.21,135,10.17,150,9.18,180,8.34

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.89	6.21	6.47	6.42	5.94	5.74	5.14	4.3
8	6.87	7.07	7.21	7.21	7.07	6.93	6.34	5.4
10	7.26	7.43	7.59	7.61	7.63	7.53	7.17	6.41
12	7.4	7.6	7.89	7.99	8.15	8.04	7.65	7.16
14	7.48	7.71	8.11	8.37	8.65	8.62	8.15	7.62
16	7.53	7.77	8.24	8.69	9	9.24	8.73	8.08
20	7.63	7.88	8.37	9.02	9.61	10.21	10.17	9.18

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.89	141°	3.72
8	40.5°	4.69	148°	4.68
10	38.2°	5.15	150.5°	5.55
12	37.5°	5.34	157.5°	6.31
14	36.8°	5.43	180°	6.95
16	36.8°	5.47	180°	7.45
20	36.8°	5.54	180°	8.34

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°	5.89	6.87	7.26	7.40	7.48	7.53	7.63
60°	6.21	7.07	7.43	7.60	7.71	7.77	7.88
75°	6.47	7.21	7.59	7.89	8.11	8.24	8.37
90°	6.42	7.21	7.61	7.99	8.37	8.69	9.02
110°	5.94	7.07	7.63	8.15	8.65	9.00	9.61
120°	5.74	6.93	7.53	8.04	8.62	9.24	10.21
135°	5.14	6.34	7.17	7.65	8.15	8.73	10.17
150°	4.30	5.40	6.41	7.16	7.62	8.08	9.18