JOSHUA II — ORC Rating

GPH

681.1

OSN

661.8

LOA

9.96 m

Displacement

4089 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6843

Medium

0.9151

High

1.0325

Triple Offshore

Low

0.8731

Medium

1.117

High

1.2299

Boat Specifications

Dimensions

Length overall: 9.96 m
Beam: 3.24 m
Draft: 1.94 m
Displacement: 4089 kg
Crew weight: 427 kg
Wetted surface: 20.43 m²

Sails

Mainsail: 23.02 m²
Genoa: 31.55 m²
Spinnaker: 74.19 m²
Asymmetric spinnaker: 0 m²

Design

Type: ZIGGURAT 995
Builder: C.P.R.
Designer: VALLICELLI & C.
Year built: 1981

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.

6,41.5,4.29932,52,4.81,60,5.03,75,5.2,90,5.14,110,5.18,120,5.05,135,4.61,147.1,4.085182,150,3.96
8,40.8,5.059478,52,5.7,60,5.94,75,6.11,90,6.12,110,6.25,120,6.13,135,5.67,150,4.96,150.7,4.930801
10,40.7,5.658628,52,6.24,60,6.41,75,6.54,90,6.61,110,6.75,120,6.69,135,6.43,150,5.85,151.6,5.775034
12,39.7,5.887708,52,6.47,60,6.62,75,6.78,90,6.82,110,7.07,120,7.05,135,6.83,150,6.48,159.7,6.120128
14,39.6,5.983025,52,6.56,60,6.74,75,6.96,90,7.05,110,7.35,120,7.4,135,7.18,150,6.84,180,6.33
16,39.7,6.030677,52,6.6,60,6.8,75,7.1,90,7.25,110,7.51,120,7.73,135,7.55,150,7.16,180,6.73
20,40.4,6.014143,52,6.6,60,6.82,75,7.24,90,7.59,110,7.79,120,8.12,135,8.27,150,7.85,180,7.35

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.81	5.03	5.2	5.14	5.18	5.05	4.61	3.96
8	5.7	5.94	6.11	6.12	6.25	6.13	5.67	4.96
10	6.24	6.41	6.54	6.61	6.75	6.69	6.43	5.85
12	6.47	6.62	6.78	6.82	7.07	7.05	6.83	6.48
14	6.56	6.74	6.96	7.05	7.35	7.4	7.18	6.84
16	6.6	6.8	7.1	7.25	7.51	7.73	7.55	7.16
20	6.6	6.82	7.24	7.59	7.79	8.12	8.27	7.85

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.5°	3.22	147.1°	3.43
8	40.8°	3.83	150.7°	4.3
10	40.7°	4.29	151.6°	5.08
12	39.7°	4.53	159.7°	5.74
14	39.6°	4.61	180°	6.33
16	39.7°	4.64	180°	6.73
20	40.4°	4.58	180°	7.35

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