Mulgannon: ORC Rating

GPH

619.9

OSN

600

LOA

11.615 m

Displacement

5836 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6497

Medium

0.8962

High

1.0425

Triple Offshore

Low

0.8392

Medium

1.096

High

1.2308

Boat Specifications

Dimensions

Length overall: 11.615 m
Beam: 3.39 m
Draft: 2.28 m
Displacement: 5836 kg
Crew weight: 691 kg
Wetted surface: 28.33 m²

Sails

Mainsail: 41.78 m²
Genoa: 35.5 m²
Spinnaker: 83.04 m²
Asymmetric spinnaker: 0 m²

Design

Type: Northshore 380
Year built: 1982
Stability index: 116.7

Performance data

Polar CSV

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

6,42.4,4.834416,52,5.42,60,5.7,75,5.87,90,5.73,110,5.57,120,5.39,135,4.82,143.8,4.275303,150,3.98
8,40.6,5.729177,52,6.4,60,6.62,75,6.77,90,6.69,110,6.72,120,6.54,135,5.98,148.7,5.184568,150,5.11
10,38.8,6.287388,52,6.98,60,7.14,75,7.26,90,7.27,110,7.38,120,7.27,135,6.86,150,6.11,151.1,6.042506
12,37.2,6.540872,52,7.27,60,7.43,75,7.57,90,7.59,110,7.78,120,7.72,135,7.42,150,6.91,157,6.583344
14,36.4,6.659264,52,7.39,60,7.58,75,7.79,90,7.85,110,8.11,120,8.09,135,7.83,150,7.42,168.2,6.834429
16,36,6.73657,52,7.47,60,7.65,75,7.94,90,8.08,110,8.39,120,8.45,135,8.22,150,7.8,177.2,7.22863
20,35.8,6.818206,52,7.56,60,7.76,75,8.1,90,8.43,110,8.86,120,9.14,135,9.07,150,8.57,179,7.961213

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.42	5.7	5.87	5.73	5.57	5.39	4.82	3.98
8	6.4	6.62	6.77	6.69	6.72	6.54	5.98	5.11
10	6.98	7.14	7.26	7.27	7.38	7.27	6.86	6.11
12	7.27	7.43	7.57	7.59	7.78	7.72	7.42	6.91
14	7.39	7.58	7.79	7.85	8.11	8.09	7.83	7.42
16	7.47	7.65	7.94	8.08	8.39	8.45	8.22	7.8
20	7.56	7.76	8.1	8.43	8.86	9.14	9.07	8.57

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.57	143.8°	3.45
8	40.6°	4.35	148.7°	4.43
10	38.8°	4.9	151.1°	5.29
12	37.2°	5.21	157°	6.06
14	36.4°	5.36	168.2°	6.69
16	36°	5.45	177.2°	7.22
20	35.8°	5.53	179°	7.96

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°	5.42	6.40	6.98	7.27	7.39	7.47	7.56
60°	5.70	6.62	7.14	7.43	7.58	7.65	7.76
75°	5.87	6.77	7.26	7.57	7.79	7.94	8.10
90°	5.73	6.69	7.27	7.59	7.85	8.08	8.43
110°	5.57	6.72	7.38	7.78	8.11	8.39	8.86
120°	5.39	6.54	7.27	7.72	8.09	8.45	9.14
135°	4.82	5.98	6.86	7.42	7.83	8.22	9.07
150°	3.98	5.11	6.11	6.91	7.42	7.80	8.57