Turmoil — ORC Rating | RegattaPages

GPH

684.8

OSN

664.2

LOA

7.5 m

Displacement

1118 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6099

Medium

0.7994

High

0.924

Triple Offshore

Low

0.7747

Medium

0.9794

High

1.1297

Boat Specifications

Dimensions

Length overall: 7.5 m
Beam: 2.42 m
Draft: 1.68 m
Displacement: 1118 kg
Crew weight: 360 kg
Wetted surface: 11.99 m²

Sails

Mainsail: 20.82 m²
Genoa: 11.1 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 46.07 m²

Design

Type: HELMSMAN 751
Builder: TOPSEL
Designer: NEW CRUISE DESIGN
Year built: 1993
Stability index: 101.6

Velocity Prediction

Polar CSV

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

6,41.8,4.252317,52,4.74,60,4.95,75,5.07,90,5.31,110,5.33,120,5.18,135,4.72,144.8,4.270968,150,4.03
8,39.6,4.944756,52,5.52,60,5.68,75,5.79,90,6.07,110,6.12,120,6.01,135,5.67,148.7,5.102645,150,5.04
10,37.6,5.389443,52,5.96,60,6.09,75,6.19,90,6.55,110,6.7,120,6.58,135,6.26,149.8,5.762056,150,5.75
12,36.3,5.67048,52,6.26,60,6.4,75,6.56,90,6.85,110,7.26,120,7.17,135,6.79,149.8,6.190161,150,6.18
14,35.2,5.763972,52,6.46,60,6.67,75,6.91,90,7.06,110,7.78,120,7.85,135,7.36,150,6.56,174.8,5.874176
16,35.2,5.812923,52,6.56,60,6.82,75,7.2,90,7.35,110,8.2,120,8.65,135,8.08,150,6.96,175.7,6.267643
20,36,5.858962,52,6.65,60,6.96,75,7.53,90,8.14,110,9.04,120,10.34,135,11.28,136.1,11.102613,150,9.24

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.74	4.95	5.07	5.31	5.33	5.18	4.72	4.03
8	5.52	5.68	5.79	6.07	6.12	6.01	5.67	5.04
10	5.96	6.09	6.19	6.55	6.7	6.58	6.26	5.75
12	6.26	6.4	6.56	6.85	7.26	7.17	6.79	6.18
14	6.46	6.67	6.91	7.06	7.78	7.85	7.36	6.56
16	6.56	6.82	7.2	7.35	8.2	8.65	8.08	6.96
20	6.65	6.96	7.53	8.14	9.04	10.34	11.28	9.24

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.17	144.8°	3.49
8	39.6°	3.81	148.7°	4.36
10	37.6°	4.27	149.8°	4.98
12	36.3°	4.57	149.8°	5.35
14	35.2°	4.71	174.8°	5.85
16	35.2°	4.75	175.7°	6.25
20	36°	4.74	136.1°	8

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