ATCHIM — ORC Rating | RegattaPages

GPH

646.2

OSN

626.8

LOA

9.99 m

Displacement

4494 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7028

Medium

0.9622

High

1.1084

Triple Offshore

Low

0.9061

Medium

1.1827

High

1.3267

Boat Specifications

Dimensions

Length overall: 9.99 m
Beam: 3.37 m
Draft: 1.99 m
Displacement: 4494 kg
Crew weight: 590 kg
Wetted surface: 23.31 m²

Sails

Mainsail: 33.96 m²
Genoa: 26.22 m²
Spinnaker: 73.31 m²
Asymmetric spinnaker: 64.82 m²

Design

Type: FIRST 34.7
Builder: BENETEAU
Designer: BRUCE FARR
Year built: 2005

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.

6,42.4,4.441704,52,4.97,60,5.23,75,5.45,90,5.48,110,5.48,120,5.3,135,4.8,145.7,4.260994,150,4.06
8,41.1,5.255032,52,5.93,60,6.22,75,6.43,90,6.58,110,6.6,120,6.45,135,5.91,150,5.12,150.1,5.121717
10,41.1,5.984898,52,6.6,60,6.79,75,6.93,90,7.12,110,7.16,120,7.07,135,6.75,150,6.06,151.4,5.991005
12,39.1,6.249626,52,6.9,60,7.07,75,7.22,90,7.44,110,7.55,120,7.47,135,7.2,150,6.79,158,6.449638
14,39,6.395195,52,7.03,60,7.22,75,7.44,90,7.6,110,7.96,120,7.9,135,7.58,150,7.2,180,6.61
16,38.9,6.437577,52,7.08,60,7.29,75,7.62,90,7.8,110,8.35,120,8.34,135,8.01,150,7.56,180,7.07
20,38.9,6.514673,52,7.12,60,7.31,75,7.77,90,8.25,110,8.8,120,9.25,135,8.94,150,8.35,180,7.77

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.97	5.23	5.45	5.48	5.48	5.3	4.8	4.06
8	5.93	6.22	6.43	6.58	6.6	6.45	5.91	5.12
10	6.6	6.79	6.93	7.12	7.16	7.07	6.75	6.06
12	6.9	7.07	7.22	7.44	7.55	7.47	7.2	6.79
14	7.03	7.22	7.44	7.6	7.96	7.9	7.58	7.2
16	7.08	7.29	7.62	7.8	8.35	8.34	8.01	7.56
20	7.12	7.31	7.77	8.25	8.8	9.25	8.94	8.35

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.28	145.7°	3.52
8	41.1°	3.96	150.1°	4.44
10	41.1°	4.51	151.4°	5.26
12	39.1°	4.85	158°	5.98
14	39°	4.97	180°	6.61
16	38.9°	5.01	180°	7.07
20	38.9°	5.07	180°	7.77

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