ATCHIM — ORC Rating | RegattaPages

GPH

643.5

OSN

623.7

LOA

9.982 m

Displacement

4493 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6343

Medium

0.8607

High

0.9815

Triple Offshore

Low

0.8161

Medium

1.0529

High

1.1708

Boat Specifications

Dimensions

Length overall: 9.982 m
Beam: 3.37 m
Draft: 1.99 m
Displacement: 4493 kg
Crew weight: 575 kg
Wetted surface: 23.21 m²

Sails

Mainsail: 34.09 m²
Genoa: 26.22 m²
Spinnaker: 80.14 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 34.7
Builder: BENETEAU
Designer: FARR
Year built: 2005
Stability index: 125.6

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.

6,43.2,4.609252,52,5.12,60,5.39,75,5.57,90,5.48,110,5.54,120,5.38,135,4.85,144.2,4.339979,150,4.07
8,41.2,5.40925,52,6.03,60,6.27,75,6.44,90,6.49,110,6.61,120,6.48,135,5.98,149.6,5.194121,150,5.17
10,39.6,5.931112,52,6.59,60,6.77,75,6.91,90,7.03,110,7.17,120,7.1,135,6.77,150,6.12,151.8,6.025166
12,38.8,6.210399,52,6.88,60,7.05,75,7.21,90,7.29,110,7.56,120,7.52,135,7.25,150,6.82,159.2,6.4504
14,38.4,6.303485,52,7.01,60,7.21,75,7.43,90,7.51,110,7.9,120,7.91,135,7.65,150,7.26,171.8,6.68838
16,38.8,6.40287,52,7.07,60,7.29,75,7.6,90,7.76,110,8.14,120,8.28,135,8.06,150,7.64,177.2,7.098475
20,39.4,6.457594,52,7.12,60,7.36,75,7.77,90,8.13,110,8.49,120,8.92,135,8.98,150,8.42,178.1,7.814296

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.12	5.39	5.57	5.48	5.54	5.38	4.85	4.07
8	6.03	6.27	6.44	6.49	6.61	6.48	5.98	5.17
10	6.59	6.77	6.91	7.03	7.17	7.1	6.77	6.12
12	6.88	7.05	7.21	7.29	7.56	7.52	7.25	6.82
14	7.01	7.21	7.43	7.51	7.9	7.91	7.65	7.26
16	7.07	7.29	7.6	7.76	8.14	8.28	8.06	7.64
20	7.12	7.36	7.77	8.13	8.49	8.92	8.98	8.42

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.36	144.2°	3.52
8	41.2°	4.07	149.6°	4.48
10	39.6°	4.57	151.8°	5.31
12	38.8°	4.84	159.2°	6.03
14	38.4°	4.94	171.8°	6.62
16	38.8°	4.99	177.2°	7.09
20	39.4°	4.99	178.1°	7.81

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