Zubenelgenubi — ORC Rating

GPH

724.1

OSN

702.1

LOA

9.305 m

Displacement

4471 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5542

Medium

0.7567

High

0.881

Triple Offshore

Low

0.7169

Medium

0.9383

High

1.0548

Boat Specifications

Dimensions

Length overall: 9.305 m
Beam: 2.93 m
Draft: 1.46 m
Displacement: 4471 kg
Crew weight: 592 kg
Wetted surface: 22.38 m²

Sails

Mainsail: 25.94 m²
Genoa: 31.41 m²
Spinnaker: 60.71 m²
Asymmetric spinnaker: 57.3 m²

Design

Type: Cal 30
Builder: Jensen Marine
Designer: Lapworth
Year built: 1961
Stability index: 118.1

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.

6,44.2,4.003289,52,4.41,60,4.7,75,4.93,90,5.03,110,4.88,120,4.7,135,4.28,147.8,3.758007,150,3.67
8,42.6,4.659711,52,5.21,60,5.54,75,5.79,90,5.99,110,5.86,120,5.71,135,5.24,150,4.63,152,4.552932
10,43.2,5.295152,52,5.86,60,6.11,75,6.31,90,6.5,110,6.47,120,6.39,135,6.07,150,5.46,153.8,5.293904
12,42.6,5.732939,52,6.23,60,6.42,75,6.58,90,6.78,110,6.8,120,6.74,135,6.54,150,6.17,157.8,5.875551
14,41.4,5.839135,52,6.38,60,6.57,75,6.76,90,7.01,110,7.1,120,7.05,135,6.84,150,6.57,171.8,6.082183
16,40.8,5.891716,52,6.45,60,6.64,75,6.9,90,7.17,110,7.4,120,7.38,135,7.15,150,6.85,179,6.450983
20,40.8,5.904926,52,6.49,60,6.69,75,7.02,90,7.39,110,7.85,120,8.01,135,7.83,150,7.46,179,7.001066

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.41	4.7	4.93	5.03	4.88	4.7	4.28	3.67
8	5.21	5.54	5.79	5.99	5.86	5.71	5.24	4.63
10	5.86	6.11	6.31	6.5	6.47	6.39	6.07	5.46
12	6.23	6.42	6.58	6.78	6.8	6.74	6.54	6.17
14	6.38	6.57	6.76	7.01	7.1	7.05	6.84	6.57
16	6.45	6.64	6.9	7.17	7.4	7.38	7.15	6.85
20	6.49	6.69	7.02	7.39	7.85	8.01	7.83	7.46

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.87	147.8°	3.18
8	42.6°	3.43	152°	4.02
10	43.2°	3.86	153.8°	4.75
12	42.6°	4.22	157.8°	5.44
14	41.4°	4.38	171.8°	6.02
16	40.8°	4.46	179°	6.45
20	40.8°	4.47	179°	7

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