JOHN DOE — ORC Rating

GPH

614.5

OSN

597.9

LOA

10.757 m

Displacement

5019 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7533

Medium

1.0042

High

1.1283

Triple Offshore

Low

0.9685

Medium

1.2375

High

1.3663

Boat Specifications

Dimensions

Length overall: 10.757 m
Beam: 3.52 m
Draft: 2.13 m
Displacement: 5019 kg
Crew weight: 639 kg
Wetted surface: 26.1 m²

Sails

Mainsail: 37.53 m²
Genoa: 38.57 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 108.45 m²

Design

Type: J-109 DK
Builder: J-COMPOSITE
Designer: JOHNSTONE Rodney
Year built: 2001

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.

6,42.4,4.79379,52,5.35,60,5.63,75,5.86,90,5.78,110,5.82,120,5.67,135,5.11,144.7,4.607066,150,4.34
8,41.3,5.670442,52,6.38,60,6.64,75,6.81,90,6.87,110,6.97,120,6.84,135,6.32,148,5.55393,150,5.44
10,40.3,6.319916,52,6.96,60,7.13,75,7.26,90,7.35,110,7.51,120,7.43,135,7.13,148.5,6.509194,150,6.41
12,38.9,6.527523,52,7.2,60,7.37,75,7.54,90,7.58,110,7.92,120,7.89,135,7.58,150,7.06,150.3,7.045565
14,38.6,6.640901,52,7.28,60,7.48,75,7.76,90,7.88,110,8.25,120,8.37,135,8.03,150,7.42,173.8,6.477889
16,38.4,6.673528,52,7.33,60,7.54,75,7.91,90,8.16,110,8.5,120,8.82,135,8.54,150,7.72,176.6,7.022361
20,38.6,6.717674,52,7.33,60,7.57,75,8.03,90,8.56,110,8.94,120,9.44,135,9.73,150,8.52,177.6,7.716769

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.35	5.63	5.86	5.78	5.82	5.67	5.11	4.34
8	6.38	6.64	6.81	6.87	6.97	6.84	6.32	5.44
10	6.96	7.13	7.26	7.35	7.51	7.43	7.13	6.41
12	7.2	7.37	7.54	7.58	7.92	7.89	7.58	7.06
14	7.28	7.48	7.76	7.88	8.25	8.37	8.03	7.42
16	7.33	7.54	7.91	8.16	8.5	8.82	8.54	7.72
20	7.33	7.57	8.03	8.56	8.94	9.44	9.73	8.52

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.54	144.7°	3.76
8	41.3°	4.26	148°	4.71
10	40.3°	4.82	148.5°	5.55
12	38.9°	5.08	150.3°	6.12
14	38.6°	5.19	173.8°	6.44
16	38.4°	5.23	176.6°	7.01
20	38.6°	5.25	177.6°	7.71

Loading polar chart…