Jabulani: ORC Rating

GPH

790.9

OSN

765.2

LOA

7.5 m

Displacement

1800 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5162

Medium

0.7016

High

0.8016

Triple Offshore

Low

0.6611

Medium

0.8581

High

0.9542

Boat Specifications

Dimensions

Length overall: 7.5 m
Beam: 2.3 m
Draft: 1.24 m
Displacement: 1800 kg
Crew weight: 250 kg
Wetted surface: 12.48 m²

Sails

Mainsail: 12.95 m²
Genoa: 15.28 m²
Spinnaker: 30.28 m²
Asymmetric spinnaker: 0 m²

Design

Type: FLAMENCA
Builder: NEBE
Designer: BERCKEMEYER
Year built: 1975

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,43.9,3.747132,52,4.14,60,4.37,75,4.5,90,4.43,110,4.45,120,4.3,135,3.9,147.5,3.450355,150,3.36
8,42.2,4.387122,52,4.87,60,5.09,75,5.24,90,5.26,110,5.33,120,5.2,135,4.81,150,4.28,151.6,4.217593
10,41.1,4.830383,52,5.34,60,5.52,75,5.67,90,5.77,110,5.85,120,5.77,135,5.49,150,5.02,155.9,4.809198
12,40,5.117197,52,5.62,60,5.77,75,5.92,90,6.04,110,6.16,120,6.11,135,5.91,150,5.58,164.6,5.165464
14,39.5,5.235707,52,5.77,60,5.92,75,6.1,90,6.19,110,6.41,120,6.39,135,6.22,150,5.95,175.8,5.504783
16,39.9,5.305246,52,5.82,60,6,75,6.23,90,6.34,110,6.64,120,6.66,135,6.5,150,6.23,178.6,5.86175
20,41.2,5.329506,52,5.83,60,6.04,75,6.36,90,6.62,110,7,120,7.23,135,7.11,150,6.77,179,6.390973
24,42.6,5.203118,52,5.76,60,6.02,75,6.42,90,6.78,110,7.23,120,7.71,135,7.97,150,7.43,178.8,6.901514

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.14	4.37	4.5	4.43	4.45	4.3	3.9	3.36
8	4.87	5.09	5.24	5.26	5.33	5.2	4.81	4.28
10	5.34	5.52	5.67	5.77	5.85	5.77	5.49	5.02
12	5.62	5.77	5.92	6.04	6.16	6.11	5.91	5.58
14	5.77	5.92	6.1	6.19	6.41	6.39	6.22	5.95
16	5.82	6	6.23	6.34	6.64	6.66	6.5	6.23
20	5.83	6.04	6.36	6.62	7	7.23	7.11	6.77
24	5.76	6.02	6.42	6.78	7.23	7.71	7.97	7.43

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	2.7	147.5°	2.91
8	42.2°	3.25	151.6°	3.71
10	41.1°	3.64	155.9°	4.39
12	40°	3.92	164.6°	4.98
14	39.5°	4.04	175.8°	5.49
16	39.9°	4.07	178.6°	5.86
20	41.2°	4.01	179°	6.39
24	42.6°	3.83	178.8°	6.9

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt24 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.14	4.87	5.34	5.62	5.77	5.82	5.83	5.76
60°	4.37	5.09	5.52	5.77	5.92	6.00	6.04	6.02
75°	4.50	5.24	5.67	5.92	6.10	6.23	6.36	6.42
90°	4.43	5.26	5.77	6.04	6.19	6.34	6.62	6.78
110°	4.45	5.33	5.85	6.16	6.41	6.64	7.00	7.23
120°	4.30	5.20	5.77	6.11	6.39	6.66	7.23	7.71
135°	3.90	4.81	5.49	5.91	6.22	6.50	7.11	7.97
150°	3.36	4.28	5.02	5.58	5.95	6.23	6.77	7.43