XTREM JP — ORC Rating

GPH

655.7

OSN

635.9

LOA

8 m

Displacement

1500 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.709

Medium

0.9468

High

1.0856

Triple Offshore

Low

0.9074

Medium

1.1537

High

1.3167

Boat Specifications

Dimensions

Length overall: 8 m
Beam: 2.41 m
Draft: 1.63 m
Displacement: 1500 kg
Crew weight: 445 kg
Wetted surface: 14.68 m²

Sails

Mainsail: 21.98 m²
Genoa: 15.49 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 64.35 m²

Design

Type: CORK 1720
Builder: 1720 YACHT UK
Designer: TONY CASTRO
Year built: 1994

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.

6,42.2,4.29263,52,4.81,60,5.07,75,5.28,90,5.57,110,5.67,120,5.56,135,5.07,142.4,4.720496,150,4.32
8,40.8,5.085898,52,5.72,60,5.93,75,6.1,90,6.38,110,6.49,120,6.41,135,6.1,149.2,5.39024,150,5.35
10,39.4,5.655248,52,6.21,60,6.35,75,6.47,90,6.7,110,7.07,120,7.01,135,6.64,150,6.16,154.9,5.95206
12,37.4,5.89113,52,6.47,60,6.64,75,6.84,90,6.94,110,7.56,120,7.69,135,7.24,150,6.68,166.4,6.131933
14,36.8,5.957054,52,6.58,60,6.82,75,7.2,90,7.28,110,7.92,120,8.32,135,7.95,150,7.23,180,6.48
16,36.7,5.986712,52,6.63,60,6.9,75,7.41,90,7.74,110,8.27,120,8.81,135,8.82,150,7.85,180,6.94
20,37.2,6.063802,52,6.72,60,7.01,75,7.57,90,8.31,110,9.03,120,9.81,135,11.27,138.9,11.160309,150,9.71

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.81	5.07	5.28	5.57	5.67	5.56	5.07	4.32
8	5.72	5.93	6.1	6.38	6.49	6.41	6.1	5.35
10	6.21	6.35	6.47	6.7	7.07	7.01	6.64	6.16
12	6.47	6.64	6.84	6.94	7.56	7.69	7.24	6.68
14	6.58	6.82	7.2	7.28	7.92	8.32	7.95	7.23
16	6.63	6.9	7.41	7.74	8.27	8.81	8.82	7.85
20	6.72	7.01	7.57	8.31	9.03	9.81	11.27	9.71

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.2°	3.18	142.4°	3.74
8	40.8°	3.85	149.2°	4.63
10	39.4°	4.37	154.9°	5.39
12	37.4°	4.68	166.4°	5.96
14	36.8°	4.77	180°	6.48
16	36.7°	4.8	180°	6.94
20	37.2°	4.83	138.9°	8.41

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