RED DOG: ORC Rating

GPH

651.7

OSN

633.4

LOA

8.989 m

Displacement

2478 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6497

Medium

0.8531

High

0.9604

Triple Offshore

Low

0.825

Medium

1.0286

High

1.1381

Boat Specifications

Dimensions

Length overall: 8.989 m
Beam: 3.39 m
Draft: 1.74 m
Displacement: 2478 kg
Crew weight: 470 kg
Wetted surface: 17.88 m²

Sails

Mainsail: 23.67 m²
Genoa: 34.51 m²
Spinnaker: 64.03 m²
Asymmetric spinnaker: 0 m²

Design

Type: J 29 MH OB
Builder: TPI
Designer: Rod Johnstone
Year built: 1982
Stability index: 103

Performance data

Polar CSV

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

6,41.8,4.855958,52,5.41,60,5.64,75,5.76,90,5.64,110,5.33,120,5.18,135,4.71,145.7,4.188364,150,4
8,39.6,5.567717,52,6.15,60,6.29,75,6.38,90,6.33,110,6.28,120,6.16,135,5.75,150,5.06,150.2,5.047447
10,37.5,5.92422,52,6.5,60,6.62,75,6.73,90,6.72,110,6.79,120,6.72,135,6.42,150,5.91,154.1,5.725035
12,36.7,6.049074,52,6.66,60,6.82,75,6.99,90,7.03,110,7.19,120,7.16,135,6.88,150,6.48,162.2,6.070603
14,36.4,6.125032,52,6.75,60,6.92,75,7.18,90,7.3,110,7.53,120,7.57,135,7.3,150,6.9,175.4,6.340423
16,36,6.143258,52,6.8,60,6.99,75,7.29,90,7.53,110,7.82,120,7.97,135,7.74,150,7.29,177.2,6.738044
20,36.6,6.190697,52,6.85,60,7.06,75,7.44,90,7.84,110,8.28,120,8.9,135,8.89,150,8.14,178.4,7.472914

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.41	5.64	5.76	5.64	5.33	5.18	4.71	4
8	6.15	6.29	6.38	6.33	6.28	6.16	5.75	5.06
10	6.5	6.62	6.73	6.72	6.79	6.72	6.42	5.91
12	6.66	6.82	6.99	7.03	7.19	7.16	6.88	6.48
14	6.75	6.92	7.18	7.3	7.53	7.57	7.3	6.9
16	6.8	6.99	7.29	7.53	7.82	7.97	7.74	7.29
20	6.85	7.06	7.44	7.84	8.28	8.9	8.89	8.14

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.62	145.7°	3.46
8	39.6°	4.29	150.2°	4.38
10	37.5°	4.7	154.1°	5.15
12	36.7°	4.85	162.2°	5.78
14	36.4°	4.93	175.4°	6.32
16	36°	4.97	177.2°	6.73
20	36.6°	4.97	178.4°	7.47

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	6.15	6.50	6.66	6.75	6.80	6.85
60°	5.64	6.29	6.62	6.82	6.92	6.99	7.06
75°	5.76	6.38	6.73	6.99	7.18	7.29	7.44
90°	5.64	6.33	6.72	7.03	7.30	7.53	7.84
110°	5.33	6.28	6.79	7.19	7.53	7.82	8.28
120°	5.18	6.16	6.72	7.16	7.57	7.97	8.90
135°	4.71	5.75	6.42	6.88	7.30	7.74	8.89
150°	4.00	5.06	5.91	6.48	6.90	7.29	8.14