FORCE 7 — ORC Rating | RegattaPages

GPH

671.5

OSN

648.9

LOA

9.49 m

Displacement

3770 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6704

Medium

0.9283

High

1.0765

Triple Offshore

Low

0.8638

Medium

1.1416

High

1.2892

Boat Specifications

Dimensions

Length overall: 9.49 m
Beam: 3.21 m
Draft: 1.93 m
Displacement: 3770 kg
Crew weight: 584 kg
Wetted surface: 22.07 m²

Sails

Mainsail: 25.76 m²
Genoa: 26.18 m²
Spinnaker: 66.56 m²
Asymmetric spinnaker: 50.26 m²

Design

Type: FIRST 31.7 DK
Builder: BENETEAU SA
Designer: FINOT Jean Marie
Year built: 1990

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.

6,42.5,4.231786,52,4.74,60,4.99,75,5.18,90,5.13,110,5.22,120,5.07,135,4.6,146.4,4.009983,150,3.86
8,40.9,5.014199,52,5.65,60,5.92,75,6.13,90,6.23,110,6.33,120,6.18,135,5.66,150,4.9,150.3,4.881241
10,40.7,5.698199,52,6.34,60,6.54,75,6.68,90,6.85,110,6.93,120,6.85,135,6.53,150,5.83,150.8,5.785167
12,39.2,6.064951,52,6.69,60,6.85,75,6.99,90,7.18,110,7.32,120,7.24,135,6.99,150,6.58,157.4,6.260763
14,38.4,6.201404,52,6.85,60,7.02,75,7.21,90,7.44,110,7.71,120,7.67,135,7.36,150,7,175.7,6.408038
16,38.2,6.247957,52,6.9,60,7.1,75,7.4,90,7.58,110,8.05,120,8.12,135,7.79,150,7.34,180,6.86
20,38.8,6.248894,52,6.92,60,7.14,75,7.57,90,8.01,110,8.68,120,8.92,135,8.77,150,8.14,180,7.54

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.74	4.99	5.18	5.13	5.22	5.07	4.6	3.86
8	5.65	5.92	6.13	6.23	6.33	6.18	5.66	4.9
10	6.34	6.54	6.68	6.85	6.93	6.85	6.53	5.83
12	6.69	6.85	6.99	7.18	7.32	7.24	6.99	6.58
14	6.85	7.02	7.21	7.44	7.71	7.67	7.36	7
16	6.9	7.1	7.4	7.58	8.05	8.12	7.79	7.34
20	6.92	7.14	7.57	8.01	8.68	8.92	8.77	8.14

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.12	146.4°	3.34
8	40.9°	3.79	150.3°	4.24
10	40.7°	4.32	150.8°	5.05
12	39.2°	4.7	157.4°	5.78
14	38.4°	4.86	175.7°	6.39
16	38.2°	4.91	180°	6.86
20	38.8°	4.87	180°	7.54

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