JOSHUA II — ORC Rating

GPH

678

OSN

658.7

LOA

9.96 m

Displacement

4089 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6113

Medium

0.8182

High

0.9238

Triple Offshore

Low

0.7815

Medium

0.9965

High

1.096

Boat Specifications

Dimensions

Length overall: 9.96 m
Beam: 3.24 m
Draft: 1.94 m
Displacement: 4089 kg
Crew weight: 420 kg
Wetted surface: 20.25 m²

Sails

Mainsail: 25.36 m²
Genoa: 31.25 m²
Spinnaker: 72.61 m²
Asymmetric spinnaker: 0 m²

Design

Type: Ziggurat 995
Builder: C.P.R.
Designer: A. Vallicelli & C.
Year built: 1981
Stability index: 125.2

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.

6,41.8,4.346216,52,4.88,60,5.12,75,5.31,90,5.22,110,5.22,120,5.07,135,4.62,146.9,4.094453,150,3.96
8,41.1,5.1356,52,5.76,60,6,75,6.16,90,6.15,110,6.28,120,6.16,135,5.69,150,4.98,150.7,4.942268
10,40.6,5.702836,52,6.27,60,6.43,75,6.56,90,6.61,110,6.76,120,6.71,135,6.45,150,5.89,152,5.787433
12,39.6,5.905155,52,6.48,60,6.64,75,6.79,90,6.85,110,7.08,120,7.07,135,6.86,150,6.51,159.7,6.173439
14,39.4,5.991716,52,6.56,60,6.75,75,6.96,90,7.08,110,7.35,120,7.42,135,7.22,150,6.88,175.4,6.37052
16,39.4,6.030539,52,6.6,60,6.8,75,7.1,90,7.29,110,7.53,120,7.75,135,7.6,150,7.22,179,6.741027
20,39.6,6.047917,52,6.61,60,6.83,75,7.23,90,7.61,110,7.79,120,8.12,135,8.33,150,7.93,179,7.391126

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.88	5.12	5.31	5.22	5.22	5.07	4.62	3.96
8	5.76	6	6.16	6.15	6.28	6.16	5.69	4.98
10	6.27	6.43	6.56	6.61	6.76	6.71	6.45	5.89
12	6.48	6.64	6.79	6.85	7.08	7.07	6.86	6.51
14	6.56	6.75	6.96	7.08	7.35	7.42	7.22	6.88
16	6.6	6.8	7.1	7.29	7.53	7.75	7.6	7.22
20	6.61	6.83	7.23	7.61	7.79	8.12	8.33	7.93

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.24	146.9°	3.43
8	41.1°	3.87	150.7°	4.31
10	40.6°	4.33	152°	5.11
12	39.6°	4.55	159.7°	5.79
14	39.4°	4.63	175.4°	6.35
16	39.4°	4.66	179°	6.74
20	39.6°	4.66	179°	7.39

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