ISSABELA — ORC Rating

GPH

585.3

OSN

567

LOA

12.5 m

Displacement

9988 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6918

Medium

0.9391

High

1.0714

Triple Offshore

Low

0.8909

Medium

1.1608

High

1.2963

Boat Specifications

Dimensions

Length overall: 12.5 m
Beam: 3.98 m
Draft: 2.53 m
Displacement: 9988 kg
Crew weight: 730 kg
Wetted surface: 37.71 m²

Sails

Mainsail: 51.8 m²
Genoa: 43.28 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 152.01 m²

Design

Type: X 4^3
Builder: X Yachts
Designer: JEPPESEN Niels
Year built: 2016

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.

6,43.6,4.971196,52,5.5,60,5.8,75,6,90,5.98,110,6.1,120,5.95,135,5.33,143,4.883329,150,4.5
8,41.1,5.838925,52,6.53,60,6.81,75,7.01,90,7.14,110,7.32,120,7.2,135,6.64,147,5.890275,150,5.7
10,39.8,6.481982,52,7.24,60,7.46,75,7.63,90,7.79,110,8.01,120,7.94,135,7.58,148,6.87461,150,6.74
12,38.9,6.874458,52,7.64,60,7.83,75,8,90,8.07,110,8.42,120,8.41,135,8.14,149.4,7.551624,150,7.5
14,38.3,7.046593,52,7.84,60,8.04,75,8.25,90,8.3,110,8.77,120,8.83,135,8.58,150,7.96,150.1,7.94789
16,37.9,7.134854,52,7.93,60,8.16,75,8.45,90,8.56,110,8.99,120,9.24,135,9.03,150,8.28,170.8,7.384999
20,37.7,7.22931,52,8.04,60,8.28,75,8.68,90,9,110,9.38,120,9.83,135,9.98,150,8.92,176.1,8.168917
24,38.2,7.253229,52,8.06,60,8.32,75,8.8,90,9.28,110,9.72,120,10.31,135,11.25,150,9.62,175.9,8.822579

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.5	5.8	6	5.98	6.1	5.95	5.33	4.5
8	6.53	6.81	7.01	7.14	7.32	7.2	6.64	5.7
10	7.24	7.46	7.63	7.79	8.01	7.94	7.58	6.74
12	7.64	7.83	8	8.07	8.42	8.41	8.14	7.5
14	7.84	8.04	8.25	8.3	8.77	8.83	8.58	7.96
16	7.93	8.16	8.45	8.56	8.99	9.24	9.03	8.28
20	8.04	8.28	8.68	9	9.38	9.83	9.98	8.92
24	8.06	8.32	8.8	9.28	9.72	10.31	11.25	9.62

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.6	143°	3.9
8	41.1°	4.4	147°	4.94
10	39.8°	4.98	148°	5.83
12	38.9°	5.35	149.4°	6.5
14	38.3°	5.53	150.1°	6.89
16	37.9°	5.63	170.8°	7.29
20	37.7°	5.72	176.1°	8.15
24	38.2°	5.7	175.9°	8.8

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