XTREM JP — ORC Rating

GPH

653.4

OSN

633.2

LOA

8 m

Displacement

1500 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6365

Medium

0.8438

High

0.9714

Triple Offshore

Low

0.8109

Medium

1.0285

High

1.1735

Boat Specifications

Dimensions

Length overall: 8 m
Beam: 2.41 m
Draft: 1.63 m
Displacement: 1500 kg
Crew weight: 425 kg
Wetted surface: 14.56 m²

Sails

Mainsail: 21.93 m²
Genoa: 15.71 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 67.62 m²

Design

Type: CORK 1720
Builder: 1720 YACHT UK
Designer: TONY CASTRO
Year built: 1994
Stability index: 100.5

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.

6,42.6,4.401593,52,4.91,60,5.15,75,5.28,90,5.51,110,5.63,120,5.52,135,5.05,142.5,4.714167,150,4.31
8,40.6,5.162845,52,5.76,60,5.96,75,6.07,90,6.32,110,6.49,120,6.43,135,6.1,148.2,5.43598,150,5.34
10,38.8,5.658649,52,6.24,60,6.38,75,6.5,90,6.68,110,7.07,120,7.06,135,6.74,150,6.15,154.1,5.947367
12,37.5,5.899011,52,6.52,60,6.69,75,6.87,90,6.92,110,7.52,120,7.67,135,7.36,150,6.75,161,6.303419
14,37,5.985208,52,6.65,60,6.88,75,7.2,90,7.28,110,7.86,120,8.24,135,8.06,150,7.3,173.6,6.5307
16,37,6.035294,52,6.72,60,6.99,75,7.41,90,7.67,110,8.18,120,8.73,135,8.89,150,7.91,173,7.032419
20,37.8,6.074757,52,6.78,60,7.09,75,7.64,90,8.25,110,8.83,120,9.7,135,11.58,139.9,11.46523,150,10.13

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.91	5.15	5.28	5.51	5.63	5.52	5.05	4.31
8	5.76	5.96	6.07	6.32	6.49	6.43	6.1	5.34
10	6.24	6.38	6.5	6.68	7.07	7.06	6.74	6.15
12	6.52	6.69	6.87	6.92	7.52	7.67	7.36	6.75
14	6.65	6.88	7.2	7.28	7.86	8.24	8.06	7.3
16	6.72	6.99	7.41	7.67	8.18	8.73	8.89	7.91
20	6.78	7.09	7.64	8.25	8.83	9.7	11.58	10.13

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.24	142.5°	3.74
8	40.6°	3.92	148.2°	4.62
10	38.8°	4.41	154.1°	5.35
12	37.5°	4.68	161°	5.96
14	37°	4.78	173.6°	6.49
16	37°	4.82	173°	6.98
20	37.8°	4.8	139.9°	8.77

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