Ragnhild — ORC Rating

GPH

664.6

OSN

644.3

LOA

9.85 m

Displacement

3870 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6046

Medium

0.8311

High

0.9591

Triple Offshore

Low

0.7816

Medium

1.0224

High

1.1488

Boat Specifications

Dimensions

Length overall: 9.85 m
Beam: 3.21 m
Draft: 1.94 m
Displacement: 3870 kg
Crew weight: 586 kg
Wetted surface: 22.22 m²

Sails

Mainsail: 26.41 m²
Genoa: 29.95 m²
Spinnaker: 61.44 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 31.7 LR
Builder: Beneteau
Designer: Groupe Finot
Year built: 1998

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.

6,42.8,4.402165,52,4.95,60,5.23,75,5.45,90,5.38,110,5.22,120,5.05,135,4.56,146,4.016706,150,3.85
8,41.2,5.18331,52,5.86,60,6.15,75,6.36,90,6.33,110,6.34,120,6.17,135,5.62,150,4.884383
10,40.5,5.825835,52,6.47,60,6.66,75,6.81,90,6.85,110,6.94,120,6.86,135,6.49,150,5.79,152,5.685502
12,39,6.137843,52,6.77,60,6.93,75,7.08,90,7.17,110,7.32,120,7.25,135,6.98,150,6.54,157,6.235709
14,38.2,6.222507,52,6.88,60,7.07,75,7.3,90,7.38,110,7.71,120,7.65,135,7.35,150,6.98,180,6.37
16,38.2,6.286132,52,6.94,60,7.14,75,7.46,90,7.65,110,8.07,120,8.08,135,7.76,150,7.32,180,6.85
20,39,6.292254,52,6.94,60,7.17,75,7.59,90,8.08,110,8.5,120,8.93,135,8.7,150,8.11,180,7.53

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.95	5.23	5.45	5.38	5.22	5.05	4.56	3.85
8	5.86	6.15	6.36	6.33	6.34	6.17	5.62	4.89
10	6.47	6.66	6.81	6.85	6.94	6.86	6.49	5.79
12	6.77	6.93	7.08	7.17	7.32	7.25	6.98	6.54
14	6.88	7.07	7.3	7.38	7.71	7.65	7.35	6.98
16	6.94	7.14	7.46	7.65	8.07	8.08	7.76	7.32
20	6.94	7.17	7.59	8.08	8.5	8.93	8.7	8.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.23	146°	3.33
8	41.2°	3.9	150°	4.23
10	40.5°	4.43	152°	5.02
12	39°	4.77	157°	5.74
14	38.2°	4.89	180°	6.37
16	38.2°	4.94	180°	6.85
20	39°	4.89	180°	7.53

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