Somotty 4: ORC Rating

GPH

633.1

OSN

611.3

LOA

13.085 m

Displacement

8199 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6198

Medium

0.8685

High

1.0068

Triple Offshore

Low

0.8055

Medium

1.0831

High

1.2205

Boat Specifications

Dimensions

Length overall: 13.085 m
Beam: 3.99 m
Draft: 1.92 m
Displacement: 8199 kg
Crew weight: 755 kg
Wetted surface: 33.94 m²

Sails

Mainsail: 38.48 m²
Genoa: 45.66 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 102.99 m²

Design

Type: Elan 431
Builder: Elan marine
Designer: Jakopin
Year built: 1990
Stability index: 118.5

Performance data

Polar CSV

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

6,45.3,4.606233,52,5.06,60,5.39,75,5.6,90,5.46,110,5.43,120,5.24,135,4.66,144.2,4.204355,150,3.93
8,43.2,5.555795,52,6.15,60,6.45,75,6.66,90,6.58,110,6.71,120,6.52,135,5.93,146.2,5.306958,150,5.1
10,41.4,6.185751,52,6.86,60,7.1,75,7.28,90,7.33,110,7.47,120,7.37,135,6.93,146.9,6.302832,150,6.09
12,40,6.579253,52,7.26,60,7.46,75,7.63,90,7.73,110,7.9,120,7.85,135,7.56,147.8,7.019674,150,6.86
14,39.4,6.76818,52,7.47,60,7.66,75,7.86,90,7.95,110,8.22,120,8.2,135,7.98,148.8,7.44712,150,7.35
16,38.8,6.839138,52,7.57,60,7.77,75,8.02,90,8.13,110,8.5,120,8.54,135,8.33,150,7.7,170.3,6.878336
20,38.7,6.919259,52,7.65,60,7.88,75,8.22,90,8.48,110,9,120,9.28,135,9.08,150,8.25,176.3,7.676

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.06	5.39	5.6	5.46	5.43	5.24	4.66	3.93
8	6.15	6.45	6.66	6.58	6.71	6.52	5.93	5.1
10	6.86	7.1	7.28	7.33	7.47	7.37	6.93	6.09
12	7.26	7.46	7.63	7.73	7.9	7.85	7.56	6.86
14	7.47	7.66	7.86	7.95	8.22	8.2	7.98	7.35
16	7.57	7.77	8.02	8.13	8.5	8.54	8.33	7.7
20	7.65	7.88	8.22	8.48	9	9.28	9.08	8.25

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.3°	3.24	144.2°	3.41
8	43.2°	4.05	146.2°	4.41
10	41.4°	4.64	146.9°	5.28
12	40°	5.04	147.8°	5.94
14	39.4°	5.23	148.8°	6.37
16	38.8°	5.33	170.3°	6.78
20	38.7°	5.4	176.3°	7.66

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°	5.06	6.15	6.86	7.26	7.47	7.57	7.65
60°	5.39	6.45	7.10	7.46	7.66	7.77	7.88
75°	5.60	6.66	7.28	7.63	7.86	8.02	8.22
90°	5.46	6.58	7.33	7.73	7.95	8.13	8.48
110°	5.43	6.71	7.47	7.90	8.22	8.50	9.00
120°	5.24	6.52	7.37	7.85	8.20	8.54	9.28
135°	4.66	5.93	6.93	7.56	7.98	8.33	9.08
150°	3.93	5.10	6.09	6.86	7.35	7.70	8.25