GUMMO: ORC Rating

GPH

643.2

OSN

620.7

LOA

10 m

Displacement

3869 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6894

Medium

0.9648

High

1.1423

Triple Offshore

Low

0.893

Medium

1.193

High

1.3792

Boat Specifications

Dimensions

Length overall: 10 m
Beam: 3.7 m
Draft: 1.98 m
Displacement: 3869 kg
Crew weight: 575 kg
Wetted surface: 24.37 m²

Sails

Mainsail: 31.99 m²
Genoa: 20.61 m²
Spinnaker: 79.48 m²
Asymmetric spinnaker: 0 m²

Design

Type: BONGO 9.60
Builder: 3C COMPOSITE
Designer: ROLAND Pierre
Year built: 2002

Performance data

Polar CSV

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

6,43.1,4.259327,52,4.75,60,5.03,75,5.25,90,5.44,110,5.54,120,5.39,135,4.89,144.9,4.339059,150,4.09
8,41.4,5.092579,52,5.73,60,6.02,75,6.26,90,6.61,110,6.72,120,6.58,135,6.04,148.9,5.25537,150,5.19
10,40.8,5.786035,52,6.49,60,6.73,75,6.91,90,7.22,110,7.34,120,7.25,135,6.92,149.9,6.17233,150,6.17
12,39.9,6.308941,52,6.95,60,7.12,75,7.26,90,7.57,110,7.82,120,7.73,135,7.4,150,6.94,156.3,6.650921
14,38.3,6.524152,52,7.18,60,7.37,75,7.56,90,7.77,110,8.34,120,8.3,135,7.88,150,7.39,173,6.750316
16,37.9,6.627938,52,7.33,60,7.56,75,7.87,90,8,110,8.78,120,8.89,135,8.43,150,7.82,180,7.2
20,38.2,6.667881,52,7.4,60,7.71,75,8.34,90,8.71,110,9.38,120,10,135,9.81,150,8.86,180,8.03

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.75	5.03	5.25	5.44	5.54	5.39	4.89	4.09
8	5.73	6.02	6.26	6.61	6.72	6.58	6.04	5.19
10	6.49	6.73	6.91	7.22	7.34	7.25	6.92	6.17
12	6.95	7.12	7.26	7.57	7.82	7.73	7.4	6.94
14	7.18	7.37	7.56	7.77	8.34	8.3	7.88	7.39
16	7.33	7.56	7.87	8	8.78	8.89	8.43	7.82
20	7.4	7.71	8.34	8.71	9.38	10	9.81	8.86

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	3.11	144.9°	3.55
8	41.4°	3.82	148.9°	4.5
10	40.8°	4.38	149.9°	5.34
12	39.9°	4.84	156.3°	6.09
14	38.3°	5.12	173°	6.7
16	37.9°	5.23	180°	7.2
20	38.2°	5.24	180°	8.03

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 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)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.75	5.73	6.49	6.95	7.18	7.33	7.40
60°	5.03	6.02	6.73	7.12	7.37	7.56	7.71
75°	5.25	6.26	6.91	7.26	7.56	7.87	8.34
90°	5.44	6.61	7.22	7.57	7.77	8.00	8.71
110°	5.54	6.72	7.34	7.82	8.34	8.78	9.38
120°	5.39	6.58	7.25	7.73	8.30	8.89	10.00
135°	4.89	6.04	6.92	7.40	7.88	8.43	9.81
150°	4.09	5.19	6.17	6.94	7.39	7.82	8.86