Jongeheer — ORC Rating

GPH

617.5

OSN

604.4

LOA

9.95 m

Displacement

3809 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6698

Medium

0.8784

High

0.9757

Triple Offshore

Low

0.8687

Medium

1.0884

High

1.1987

Boat Specifications

Dimensions

Length overall: 9.95 m
Beam: 3.41 m
Draft: 2.1 m
Displacement: 3809 kg
Crew weight: 170 kg
Wetted surface: 21.52 m²

Sails

Mainsail: 33.07 m²
Genoa: 26.8 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 105.48 m²

Design

Type: J-99
Builder: J Composites
Designer: J Boats
Year built: 2018
Stability index: 120.9

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.

6,42.9,4.68232,52,5.2,60,5.59,75,6.1,90,6.31,110,6.1,120,5.85,135,5.25,144.2,4.771511,150,4.46
8,41.4,5.559177,52,6.23,60,6.48,75,6.89,90,7.09,110,7.01,120,6.95,135,6.52,147.5,5.774306,150,5.62
10,40.2,6.088013,52,6.76,60,6.95,75,7.15,90,7.46,110,7.49,120,7.5,135,7.23,149.2,6.647575,150,6.6
12,39.4,6.224655,52,6.94,60,7.15,75,7.38,90,7.7,110,7.96,120,8,135,7.77,150,7.19,150.7,7.143928
14,40,6.344279,52,7.01,60,7.23,75,7.59,90,7.9,110,8.41,120,8.34,135,8.37,148.4,7.690258,150,7.57
16,39.9,6.400186,52,7.03,60,7.28,75,7.7,90,8.06,110,8.75,120,8.84,135,9.04,150,7.96,174.8,7.049011
20,40.6,6.493068,52,7.13,60,7.38,75,7.74,90,8.41,110,9.26,120,9.85,135,10.41,141.7,10.321412,150,9.36

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.2	5.59	6.1	6.31	6.1	5.85	5.25	4.46
8	6.23	6.48	6.89	7.09	7.01	6.95	6.52	5.62
10	6.76	6.95	7.15	7.46	7.49	7.5	7.23	6.6
12	6.94	7.15	7.38	7.7	7.96	8	7.77	7.19
14	7.01	7.23	7.59	7.9	8.41	8.34	8.37	7.57
16	7.03	7.28	7.7	8.06	8.75	8.84	9.04	7.96
20	7.13	7.38	7.74	8.41	9.26	9.85	10.41	9.36

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.43	144.2°	3.87
8	41.4°	4.17	147.5°	4.87
10	40.2°	4.65	149.2°	5.71
12	39.4°	4.81	150.7°	6.23
14	40°	4.86	148.4°	6.55
16	39.9°	4.91	174.8°	7.02
20	40.6°	4.93	141.7°	8.1

Loading polar chart…