Turmoil — ORC Rating | RegattaPages

GPH

684.3

OSN

663.9

LOA

7.5 m

Displacement

1118 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6103

Medium

0.8007

High

0.9223

Triple Offshore

Low

0.7769

Medium

0.9799

High

1.1262

Boat Specifications

Dimensions

Length overall: 7.5 m
Beam: 2.42 m
Draft: 1.7 m
Displacement: 1118 kg
Crew weight: 338 kg
Wetted surface: 11.52 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: 103.6

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.

6,41.8,4.19866,52,4.7,60,4.91,75,5.09,90,5.37,110,5.4,120,5.26,135,4.78,145.7,4.297309,150,4.09
8,40.6,4.965287,52,5.54,60,5.71,75,5.85,90,6.1,110,6.14,120,6.04,135,5.75,148.4,5.201197,150,5.11
10,38.8,5.453347,52,5.95,60,6.07,75,6.19,90,6.56,110,6.71,120,6.59,135,6.27,150,5.82,150.7,5.790824
12,36.3,5.67048,52,6.23,60,6.38,75,6.55,90,6.81,110,7.32,120,7.2,135,6.8,150,6.2,152,6.093227
14,35.2,5.727258,52,6.39,60,6.63,75,6.93,90,7.03,110,7.77,120,7.96,135,7.4,150,6.57,175.7,5.906626
16,35.2,5.763972,52,6.46,60,6.74,75,7.22,90,7.42,110,8.14,120,8.73,135,8.16,150,6.98,176.6,6.251003
20,35.7,5.824524,52,6.54,60,6.82,75,7.43,90,8.19,110,8.92,120,9.94,135,11.4,135.8,11.270582,150,9.32

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.7	4.91	5.09	5.37	5.4	5.26	4.78	4.09
8	5.54	5.71	5.85	6.1	6.14	6.04	5.75	5.11
10	5.95	6.07	6.19	6.56	6.71	6.59	6.27	5.82
12	6.23	6.38	6.55	6.81	7.32	7.2	6.8	6.2
14	6.39	6.63	6.93	7.03	7.77	7.96	7.4	6.57
16	6.46	6.74	7.22	7.42	8.14	8.73	8.16	6.98
20	6.54	6.82	7.43	8.19	8.92	9.94	11.4	9.32

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.13	145.7°	3.55
8	40.6°	3.77	148.4°	4.43
10	38.8°	4.25	150.7°	5.05
12	36.3°	4.57	152°	5.38
14	35.2°	4.68	175.7°	5.89
16	35.2°	4.71	176.6°	6.24
20	35.7°	4.73	135.8°	8.08

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