HIT: ORC Rating

GPH

523.9

OSN

517.3

LOA

11.369 m

Displacement

3627 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8185

Medium

1.0194

High

1.1652

Triple Offshore

Low

1.0495

Medium

1.2596

High

1.4202

Boat Specifications

Dimensions

Length overall: 11.369 m
Beam: 3.49 m
Draft: 2.63 m
Displacement: 3627 kg
Crew weight: 694 kg
Wetted surface: 24.78 m²

Sails

Mainsail: 56.36 m²
Genoa: 34.76 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 139.35 m²

Design

Type: X-TREME 37
Builder: G FORCE
Designer: REICHEL/PUGH
Year built: 2004
Stability index: 134.9

Performance data

Polar CSV

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

6,41.8,6.210797,52,6.95,60,7.28,75,7.55,90,7.53,110,7.1,120,6.77,135,6.1,142.4,5.604011,150,5.12
8,39.3,6.668043,52,7.46,60,7.72,75,8.06,90,8.17,110,7.88,120,7.84,135,7.43,146,6.730696,150,6.44
10,37.6,6.878797,52,7.7,60,7.95,75,8.36,90,8.67,110,8.45,120,8.58,135,8.22,150,7.43,151.4,7.346384
12,37.2,7.04305,52,7.86,60,8.13,75,8.59,90,9.01,110,9.09,120,9.2,135,9.05,150,8.15,151.4,8.052548
14,37,7.124652,52,7.96,60,8.26,75,8.76,90,9.29,110,9.77,120,9.75,135,10.05,148.2,9.036435,150,8.87
16,37,7.187259,52,8.03,60,8.36,75,8.92,90,9.55,110,10.42,120,10.31,135,11.18,145.9,10.277029,150,9.82
20,37.6,7.232204,52,8.08,60,8.45,75,9.13,90,9.95,110,11.37,120,11.88,135,13.01,144.7,13.257568,150,12.49

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.95	7.28	7.55	7.53	7.1	6.77	6.1	5.12
8	7.46	7.72	8.06	8.17	7.88	7.84	7.43	6.44
10	7.7	7.95	8.36	8.67	8.45	8.58	8.22	7.43
12	7.86	8.13	8.59	9.01	9.09	9.2	9.05	8.15
14	7.96	8.26	8.76	9.29	9.77	9.75	10.05	8.87
16	8.03	8.36	8.92	9.55	10.42	10.31	11.18	9.82
20	8.08	8.45	9.13	9.95	11.37	11.88	13.01	12.49

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	4.63	142.4°	4.44
8	39.3°	5.16	146°	5.58
10	37.6°	5.45	151.4°	6.45
12	37.2°	5.61	151.4°	7.07
14	37°	5.69	148.2°	7.68
16	37°	5.74	145.9°	8.51
20	37.6°	5.73	144.7°	10.82

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°	6.95	7.46	7.70	7.86	7.96	8.03	8.08
60°	7.28	7.72	7.95	8.13	8.26	8.36	8.45
75°	7.55	8.06	8.36	8.59	8.76	8.92	9.13
90°	7.53	8.17	8.67	9.01	9.29	9.55	9.95
110°	7.10	7.88	8.45	9.09	9.77	10.42	11.37
120°	6.77	7.84	8.58	9.20	9.75	10.31	11.88
135°	6.10	7.43	8.22	9.05	10.05	11.18	13.01
150°	5.12	6.44	7.43	8.15	8.87	9.82	12.49