TANJAOUI: ORC Rating

GPH

670.8

OSN

650.2

LOA

9 m

Displacement

2669 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6065

Medium

0.829

High

0.949

Triple Offshore

Low

0.7822

Medium

1.0088

High

1.1307

Boat Specifications

Dimensions

Length overall: 9 m
Beam: 3.39 m
Draft: 1.76 m
Displacement: 2669 kg
Crew weight: 520 kg
Wetted surface: 18.39 m²

Sails

Mainsail: 27.74 m²
Genoa: 27.1 m²
Spinnaker: 55.62 m²
Asymmetric spinnaker: 0 m²

Design

Type: J 29
Builder: TILLOTSON-PEARSON
Designer: R. JOHNSTONE
Year built: 1979
Stability index: 100.8

Performance data

Polar CSV

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

6,42.6,4.442349,52,4.97,60,5.25,75,5.45,90,5.38,110,5.26,120,5.08,135,4.56,146,4.004644,150,3.83
8,41.4,5.252555,52,5.88,60,6.11,75,6.25,90,6.24,110,6.26,120,6.12,135,5.59,150,4.85,150.7,4.816131
10,40,5.822117,52,6.36,60,6.5,75,6.61,90,6.7,110,6.75,120,6.65,135,6.35,150,5.76,152.3,5.647206
12,38.1,6.048784,52,6.59,60,6.74,75,6.9,90,7.05,110,7.18,120,7.07,135,6.77,150,6.4,161,6.039014
14,37.2,6.11402,52,6.71,60,6.91,75,7.16,90,7.28,110,7.61,120,7.51,135,7.18,150,6.79,176.6,6.291073
16,37,6.147986,52,6.77,60,6.99,75,7.36,90,7.53,110,7.99,120,7.95,135,7.61,150,7.18,179,6.681018
20,37.6,6.159364,52,6.8,60,7.06,75,7.53,90,7.96,110,8.49,120,8.9,135,8.59,150,8,178.4,7.402886

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.97	5.25	5.45	5.38	5.26	5.08	4.56	3.83
8	5.88	6.11	6.25	6.24	6.26	6.12	5.59	4.85
10	6.36	6.5	6.61	6.7	6.75	6.65	6.35	5.76
12	6.59	6.74	6.9	7.05	7.18	7.07	6.77	6.4
14	6.71	6.91	7.16	7.28	7.61	7.51	7.18	6.79
16	6.77	6.99	7.36	7.53	7.99	7.95	7.61	7.18
20	6.8	7.06	7.53	7.96	8.49	8.9	8.59	8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.27	146°	3.32
8	41.4°	3.94	150.7°	4.2
10	40°	4.46	152.3°	5
12	38.1°	4.76	161°	5.71
14	37.2°	4.87	176.6°	6.28
16	37°	4.91	179°	6.68
20	37.6°	4.88	178.4°	7.4

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°	4.97	5.88	6.36	6.59	6.71	6.77	6.80
60°	5.25	6.11	6.50	6.74	6.91	6.99	7.06
75°	5.45	6.25	6.61	6.90	7.16	7.36	7.53
90°	5.38	6.24	6.70	7.05	7.28	7.53	7.96
110°	5.26	6.26	6.75	7.18	7.61	7.99	8.49
120°	5.08	6.12	6.65	7.07	7.51	7.95	8.90
135°	4.56	5.59	6.35	6.77	7.18	7.61	8.59
150°	3.83	4.85	5.76	6.40	6.79	7.18	8.00