KATCHUPITCHU — ORC Rating

GPH

661.1

OSN

640.3

LOA

9.61 m

Displacement

3637 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6129

Medium

0.831

High

0.9428

Triple Offshore

Low

0.7896

Medium

1.0271

High

1.1468

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.93 m
Displacement: 3637 kg
Crew weight: 380 kg
Wetted surface: 21.17 m²

Sails

Mainsail: 24.27 m²
Genoa: 26.35 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 83.82 m²

Design

Type: First 31.7
Builder: Beneteau
Designer: Finot
Year built: 1998
Stability index: 119.8

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.

6,43.6,4.377414,52,4.85,60,5.11,75,5.28,90,5.34,110,5.47,120,5.3,135,4.72,144.8,4.246493,150,4.01
8,41.2,5.156729,52,5.76,60,6,75,6.17,90,6.35,110,6.53,120,6.42,135,5.92,146.9,5.276234,150,5.1
10,39.9,5.709331,52,6.35,60,6.54,75,6.69,90,6.9,110,7.1,120,7.05,135,6.76,147.1,6.229009,150,6.04
12,38.7,6.035131,52,6.69,60,6.86,75,7.02,90,7.16,110,7.5,120,7.51,135,7.25,148.8,6.757355,150,6.67
14,38.2,6.184332,52,6.87,60,7.05,75,7.26,90,7.32,110,7.86,120,7.94,135,7.71,149.6,7.060758,150,7.04
16,37.8,6.226626,52,6.95,60,7.16,75,7.45,90,7.58,110,8.1,120,8.35,135,8.18,150,7.34,173.6,6.591076
20,38.2,6.260682,52,7,60,7.24,75,7.66,90,7.99,110,8.51,120,9.07,135,9.31,150,8,175.7,7.30055

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.85	5.11	5.28	5.34	5.47	5.3	4.72	4.01
8	5.76	6	6.17	6.35	6.53	6.42	5.92	5.1
10	6.35	6.54	6.69	6.9	7.1	7.05	6.76	6.04
12	6.69	6.86	7.02	7.16	7.5	7.51	7.25	6.67
14	6.87	7.05	7.26	7.32	7.86	7.94	7.71	7.04
16	6.95	7.16	7.45	7.58	8.1	8.35	8.18	7.34
20	7	7.24	7.66	7.99	8.51	9.07	9.31	8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.17	144.8°	3.47
8	41.2°	3.88	146.9°	4.42
10	39.9°	4.38	147.1°	5.23
12	38.7°	4.71	148.8°	5.78
14	38.2°	4.86	149.6°	6.09
16	37.8°	4.92	173.6°	6.55
20	38.2°	4.92	175.7°	7.28

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