NINA: ORC Rating

GPH

652.1

OSN

633.5

LOA

9.24 m

Displacement

4093 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6259

Medium

0.8407

High

0.9514

Triple Offshore

Low

0.8073

Medium

1.0378

High

1.1542

Boat Specifications

Dimensions

Length overall: 9.24 m
Beam: 3.2 m
Draft: 1.92 m
Displacement: 4093 kg
Crew weight: 350 kg
Wetted surface: 21.27 m²

Sails

Mainsail: 30.74 m²
Genoa: 25.2 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 85.32 m²

Design

Type: Elan 310
Builder: Elan Marine
Designer: Humphreys
Year built: 2009
Stability index: 127.9

Performance data

Polar CSV

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

6,43.2,4.389764,52,4.9,60,5.18,75,5.41,90,5.52,110,5.61,120,5.46,135,4.92,145.1,4.42601,150,4.19
8,41.8,5.204728,52,5.82,60,6.11,75,6.32,90,6.55,110,6.67,120,6.56,135,6.09,147.8,5.38884,150,5.26
10,40.8,5.825666,52,6.46,60,6.65,75,6.8,90,7.01,110,7.16,120,7.1,135,6.84,148.2,6.306679,150,6.19
12,39.6,6.138765,52,6.76,60,6.93,75,7.08,90,7.19,110,7.56,120,7.53,135,7.27,150,6.77,150.1,6.771279
14,39,6.253651,52,6.89,60,7.08,75,7.3,90,7.39,110,7.88,120,8.02,135,7.72,150,7.09,166.4,6.389145
16,38.8,6.300219,52,6.94,60,7.15,75,7.48,90,7.67,110,8.12,120,8.49,135,8.23,150,7.38,175.4,6.741716
20,38.4,6.341765,52,6.99,60,7.18,75,7.64,90,8.15,110,8.56,120,9.1,135,9.51,150,8.09,176.6,7.372978

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.9	5.18	5.41	5.52	5.61	5.46	4.92	4.19
8	5.82	6.11	6.32	6.55	6.67	6.56	6.09	5.26
10	6.46	6.65	6.8	7.01	7.16	7.1	6.84	6.19
12	6.76	6.93	7.08	7.19	7.56	7.53	7.27	6.77
14	6.89	7.08	7.3	7.39	7.88	8.02	7.72	7.09
16	6.94	7.15	7.48	7.67	8.12	8.49	8.23	7.38
20	6.99	7.18	7.64	8.15	8.56	9.1	9.51	8.09

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.2	145.1°	3.63
8	41.8°	3.88	147.8°	4.56
10	40.8°	4.41	148.2°	5.36
12	39.6°	4.73	150.1°	5.87
14	39°	4.86	166.4°	6.21
16	38.8°	4.91	175.4°	6.72
20	38.4°	4.97	176.6°	7.36

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°	4.90	5.82	6.46	6.76	6.89	6.94	6.99
60°	5.18	6.11	6.65	6.93	7.08	7.15	7.18
75°	5.41	6.32	6.80	7.08	7.30	7.48	7.64
90°	5.52	6.55	7.01	7.19	7.39	7.67	8.15
110°	5.61	6.67	7.16	7.56	7.88	8.12	8.56
120°	5.46	6.56	7.10	7.53	8.02	8.49	9.10
135°	4.92	6.09	6.84	7.27	7.72	8.23	9.51
150°	4.19	5.26	6.19	6.77	7.09	7.38	8.09