PORTHOS 2: ORC Rating

GPH

573.6

OSN

553.8

LOA

13.58 m

Displacement

11289 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6846

Medium

0.9576

High

1.1231

Triple Offshore

Low

0.889

Medium

1.1917

High

1.3654

Boat Specifications

Dimensions

Length overall: 13.58 m
Beam: 4.36 m
Draft: 2.25 m
Displacement: 11289 kg
Crew weight: 1000 kg
Wetted surface: 42.88 m²

Sails

Mainsail: 56.83 m²
Genoa: 46.82 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 183.84 m²

Design

Type: Elan 450
Builder: Elan Yachts
Designer: Humphreys
Year built: 2007
Stability index: 144.6

Performance data

Polar CSV

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

6,44.8,4.876188,52,5.38,60,5.73,75,5.96,90,6.06,110,6.2,120,6.07,135,5.41,143.3,4.939038,150,4.57
8,42.6,5.828036,52,6.51,60,6.83,75,7.06,90,7.34,110,7.52,120,7.39,135,6.8,146.9,6.004402,150,5.8
10,41.2,6.565526,52,7.32,60,7.59,75,7.78,90,8.12,110,8.3,120,8.21,135,7.8,147.8,7.066944,150,6.9
12,40,7.11447,52,7.86,60,8.06,75,8.22,90,8.56,110,8.8,120,8.74,135,8.41,149.6,7.779587,150,7.75
14,38.4,7.400853,52,8.19,60,8.38,75,8.54,90,8.81,110,9.25,120,9.23,135,8.9,150,8.24,150.1,8.236275
16,38.2,7.622253,52,8.4,60,8.61,75,8.82,90,8.99,110,9.65,120,9.71,135,9.38,150,8.59,165.8,7.684807
20,37.8,7.770627,52,8.59,60,8.87,75,9.27,90,9.42,110,10.2,120,10.72,135,10.45,150,9.25,175.4,8.40708

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.38	5.73	5.96	6.06	6.2	6.07	5.41	4.57
8	6.51	6.83	7.06	7.34	7.52	7.39	6.8	5.8
10	7.32	7.59	7.78	8.12	8.3	8.21	7.8	6.9
12	7.86	8.06	8.22	8.56	8.8	8.74	8.41	7.75
14	8.19	8.38	8.54	8.81	9.25	9.23	8.9	8.24
16	8.4	8.61	8.82	8.99	9.65	9.71	9.38	8.59
20	8.59	8.87	9.27	9.42	10.2	10.72	10.45	9.25

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.8°	3.46	143.3°	3.96
8	42.6°	4.29	146.9°	5.03
10	41.2°	4.94	147.8°	5.98
12	40°	5.45	149.6°	6.71
14	38.4°	5.8	150.1°	7.14
16	38.2°	5.99	165.8°	7.45
20	37.8°	6.14	175.4°	8.38

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°	5.38	6.51	7.32	7.86	8.19	8.40	8.59
60°	5.73	6.83	7.59	8.06	8.38	8.61	8.87
75°	5.96	7.06	7.78	8.22	8.54	8.82	9.27
90°	6.06	7.34	8.12	8.56	8.81	8.99	9.42
110°	6.20	7.52	8.30	8.80	9.25	9.65	10.20
120°	6.07	7.39	8.21	8.74	9.23	9.71	10.72
135°	5.41	6.80	7.80	8.41	8.90	9.38	10.45
150°	4.57	5.80	6.90	7.75	8.24	8.59	9.25