FETTES BOOT-O — ORC Rating

GPH

536.1

OSN

525.7

LOA

11.5 m

Displacement

3659 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7969

Medium

1.0096

High

1.1577

Triple Offshore

Low

1.0162

Medium

1.2375

High

1.398

Boat Specifications

Dimensions

Length overall: 11.5 m
Beam: 3.71 m
Draft: 2.27 m
Displacement: 3659 kg
Crew weight: 650 kg
Wetted surface: 25.96 m²

Sails

Mainsail: 51.02 m²
Genoa: 40.32 m²
Spinnaker: 147.29 m²
Asymmetric spinnaker: 0 m²

Design

Type: JS FORMEL 20
Builder: JS DANMARK
Designer: NEUCRUISE
Year built: 1989
Stability index: 97

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.

6,41.8,6.009583,52,6.73,60,7.02,75,7.17,90,7.04,110,6.65,120,6.49,135,5.89,143,5.384183,150,4.97
8,38.4,6.545927,52,7.35,60,7.6,75,7.82,90,7.79,110,7.67,120,7.65,135,7.22,142.8,6.754297,150,6.21
10,37.5,6.844365,52,7.62,60,7.85,75,8.16,90,8.33,110,8.16,120,8.34,135,8.03,150,7.23,150.5,7.192462
12,36.6,6.975434,52,7.79,60,8.04,75,8.42,90,8.73,110,8.72,120,8.85,135,8.81,150,8,155.9,7.679379
14,36.6,7.099995,52,7.91,60,8.19,75,8.63,90,9.04,110,9.34,120,9.32,135,9.68,150,8.71,157.4,8.253808
16,36,7.144473,52,8,60,8.3,75,8.8,90,9.31,110,9.89,120,10.08,135,10.59,150,9.54,152.3,9.340478
20,36.4,7.218344,52,8.11,60,8.45,75,9.05,90,9.73,110,10.78,120,11.64,135,12.06,146,12.387858,150,11.86

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.73	7.02	7.17	7.04	6.65	6.49	5.89	4.97
8	7.35	7.6	7.82	7.79	7.67	7.65	7.22	6.21
10	7.62	7.85	8.16	8.33	8.16	8.34	8.03	7.23
12	7.79	8.04	8.42	8.73	8.72	8.85	8.81	8
14	7.91	8.19	8.63	9.04	9.34	9.32	9.68	8.71
16	8	8.3	8.8	9.31	9.89	10.08	10.59	9.54
20	8.11	8.45	9.05	9.73	10.78	11.64	12.06	11.86

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	4.48	143°	4.3
8	38.4°	5.13	142.8°	5.38
10	37.5°	5.43	150.5°	6.26
12	36.6°	5.6	155.9°	7.01
14	36.6°	5.7	157.4°	7.62
16	36°	5.78	152.3°	8.27
20	36.4°	5.81	146°	10.27

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