FARSTEO: ORC Rating

GPH

641.6

OSN

622.5

LOA

8.7 m

Displacement

3014 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7253

Medium

0.9748

High

1.1086

Triple Offshore

Low

0.9268

Medium

1.1829

High

1.328

Boat Specifications

Dimensions

Length overall: 8.7 m
Beam: 3.44 m
Draft: 1.88 m
Displacement: 3014 kg
Crew weight: 554 kg
Wetted surface: 20.28 m²

Sails

Mainsail: 29.26 m²
Genoa: 27.29 m²
Spinnaker: 74.38 m²
Asymmetric spinnaker: 0 m²

Design

Type: BONGO 870
Builder: 3C COMPOSITE
Designer: ROLLAND Pierre
Year built: 2006

Performance data

Polar CSV

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

6,42,4.561695,52,5.11,60,5.36,75,5.56,90,5.5,110,5.55,120,5.41,135,4.93,145.8,4.401022,150,4.2
8,40.8,5.402941,52,6.05,60,6.27,75,6.41,90,6.48,110,6.57,120,6.46,135,6.04,149.7,5.281473,150,5.26
10,39.1,5.966138,52,6.55,60,6.7,75,6.8,90,6.92,110,7.06,120,6.98,135,6.71,150,6.16,152.7,6.031843
12,37.5,6.16371,52,6.78,60,6.93,75,7.1,90,7.16,110,7.53,120,7.47,135,7.14,150,6.74,161.5,6.337499
14,36.9,6.227455,52,6.88,60,7.09,75,7.37,90,7.47,110,7.96,120,8.01,135,7.63,150,7.14,180,6.58
16,36.6,6.252978,52,6.93,60,7.16,75,7.59,90,7.81,110,8.24,120,8.55,135,8.17,150,7.59,180,6.98
20,36.8,6.3442,52,6.98,60,7.2,75,7.76,90,8.35,110,8.79,120,9.35,135,9.62,150,8.63,180,7.83

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.11	5.36	5.56	5.5	5.55	5.41	4.93	4.2
8	6.05	6.27	6.41	6.48	6.57	6.46	6.04	5.26
10	6.55	6.7	6.8	6.92	7.06	6.98	6.71	6.16
12	6.78	6.93	7.1	7.16	7.53	7.47	7.14	6.74
14	6.88	7.09	7.37	7.47	7.96	8.01	7.63	7.14
16	6.93	7.16	7.59	7.81	8.24	8.55	8.17	7.59
20	6.98	7.2	7.76	8.35	8.79	9.35	9.62	8.63

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.39	145.8°	3.64
8	40.8°	4.09	149.7°	4.56
10	39.1°	4.63	152.7°	5.36
12	37.5°	4.89	161.5°	6.01
14	36.9°	4.98	180°	6.58
16	36.6°	5.02	180°	6.98
20	36.8°	5.08	180°	7.83

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°	5.11	6.05	6.55	6.78	6.88	6.93	6.98
60°	5.36	6.27	6.70	6.93	7.09	7.16	7.20
75°	5.56	6.41	6.80	7.10	7.37	7.59	7.76
90°	5.50	6.48	6.92	7.16	7.47	7.81	8.35
110°	5.55	6.57	7.06	7.53	7.96	8.24	8.79
120°	5.41	6.46	6.98	7.47	8.01	8.55	9.35
135°	4.93	6.04	6.71	7.14	7.63	8.17	9.62
150°	4.20	5.26	6.16	6.74	7.14	7.59	8.63