BLUE BAT — ORC Rating

GPH

610

OSN

592.1

LOA

12.52 m

Displacement

8003 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7438

Medium

1.0151

High

1.1793

Triple Offshore

Low

0.9592

Medium

1.2522

High

1.4068

Boat Specifications

Dimensions

Length overall: 12.52 m
Beam: 3.9 m
Draft: 2.13 m
Displacement: 8003 kg
Crew weight: 640 kg
Wetted surface: 32.21 m²

Sails

Mainsail: 39.41 m²
Genoa: 49.45 m²
Spinnaker: 116.82 m²
Asymmetric spinnaker: 118.09 m²

Design

Type: X-412
Builder: X-YACHTS
Designer: JEPPESEN
Year built: 1991

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.

6,42.6,4.768393,52,5.32,60,5.61,75,5.83,90,5.76,110,5.74,120,5.58,135,5.04,145,4.516866,150,4.27
8,41.2,5.595317,52,6.33,60,6.65,75,6.88,90,6.87,110,6.98,120,6.8,135,6.19,149.7,5.385712,150,5.37
10,41.1,6.343196,52,7.05,60,7.28,75,7.43,90,7.51,110,7.62,120,7.52,135,7.14,150,6.34,150.6,6.301553
12,40,6.722848,52,7.39,60,7.57,75,7.73,90,7.8,110,7.99,120,7.93,135,7.66,150,7.14,154.9,6.912782
14,39.4,6.88465,52,7.56,60,7.74,75,7.94,90,8,110,8.34,120,8.31,135,8.03,150,7.64,168.2,7.028531
16,39.1,6.971233,52,7.63,60,7.84,75,8.13,90,8.24,110,8.63,120,8.7,135,8.42,150,7.99,180,7.44
20,39.2,7.019858,52,7.68,60,7.92,75,8.35,90,8.67,110,8.98,120,9.38,135,9.25,150,8.73,180,8.14

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.32	5.61	5.83	5.76	5.74	5.58	5.04	4.27
8	6.33	6.65	6.88	6.87	6.98	6.8	6.19	5.37
10	7.05	7.28	7.43	7.51	7.62	7.52	7.14	6.34
12	7.39	7.57	7.73	7.8	7.99	7.93	7.66	7.14
14	7.56	7.74	7.94	8	8.34	8.31	8.03	7.64
16	7.63	7.84	8.13	8.24	8.63	8.7	8.42	7.99
20	7.68	7.92	8.35	8.67	8.98	9.38	9.25	8.73

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.51	145°	3.7
8	41.2°	4.21	149.7°	4.65
10	41.1°	4.78	150.6°	5.49
12	40°	5.15	154.9°	6.26
14	39.4°	5.32	168.2°	6.88
16	39.1°	5.41	180°	7.44
20	39.2°	5.44	180°	8.14

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