RATZFATZ 3 — ORC Rating

GPH

576.8

OSN

560.3

LOA

11.4 m

Displacement

5301 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7954

Medium

1.0702

High

1.2129

Triple Offshore

Low

1.026

Medium

1.3197

High

1.4796

Boat Specifications

Dimensions

Length overall: 11.4 m
Beam: 3.99 m
Draft: 2.16 m
Displacement: 5301 kg
Crew weight: 400 kg
Wetted surface: 29.31 m²

Sails

Mainsail: 42.23 m²
Genoa: 39.33 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 145.38 m²

Design

Type: JPK 38 FC
Builder: JPK COMPOSITES
Designer: JACQUES VALERT
Year built: 2010

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.

6,42.7,4.993778,52,5.59,60,5.9,75,6.14,90,6.15,110,6.28,120,6.14,135,5.49,143.8,4.981658,150,4.64
8,41.2,5.967452,52,6.71,60,6.99,75,7.18,90,7.33,110,7.47,120,7.38,135,6.85,146.9,6.016339,150,5.82
10,39.8,6.625158,52,7.35,60,7.55,75,7.68,90,7.72,110,8.05,120,7.99,135,7.66,148.4,6.997548,150,6.88
12,38.8,6.903295,52,7.62,60,7.82,75,8.02,90,8.04,110,8.47,120,8.59,135,8.2,150,7.61,151,7.534703
14,38.2,7.02418,52,7.73,60,7.96,75,8.32,90,8.42,110,8.8,120,9.16,135,8.82,150,8,150.5,7.962262
16,37.7,7.052369,52,7.79,60,8.04,75,8.52,90,8.81,110,9.12,120,9.57,135,9.55,150,8.41,176,7.41807
20,37.4,7.20027,52,7.92,60,8.17,75,8.7,90,9.39,110,9.8,120,10.41,135,11.4,142.4,10.65267,150,9.75

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.59	5.9	6.14	6.15	6.28	6.14	5.49	4.64
8	6.71	6.99	7.18	7.33	7.47	7.38	6.85	5.82
10	7.35	7.55	7.68	7.72	8.05	7.99	7.66	6.88
12	7.62	7.82	8.02	8.04	8.47	8.59	8.2	7.61
14	7.73	7.96	8.32	8.42	8.8	9.16	8.82	8
16	7.79	8.04	8.52	8.81	9.12	9.57	9.55	8.41
20	7.92	8.17	8.7	9.39	9.8	10.41	11.4	9.75

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.7°	3.67	143.8°	4.02
8	41.2°	4.49	146.9°	5.04
10	39.8°	5.09	148.4°	5.96
12	38.8°	5.38	151°	6.59
14	38.2°	5.52	150.5°	6.93
16	37.7°	5.58	176°	7.4
20	37.4°	5.72	142.4°	8.44

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