CSi Rakker: ORC Rating

GPH

643.6

OSN

623.7

LOA

9.55 m

Displacement

3331 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.626

Medium

0.8587

High

0.9867

Triple Offshore

Low

0.8123

Medium

1.054

High

1.1819

Boat Specifications

Dimensions

Length overall: 9.55 m
Beam: 3.24 m
Draft: 1.98 m
Displacement: 3331 kg
Crew weight: 630 kg
Wetted surface: 20.33 m²

Sails

Mainsail: 27.75 m²
Genoa: 21.15 m²
Spinnaker: 68.38 m²
Asymmetric spinnaker: 56.66 m²

Design

Type: A-31
Builder: ARCHAMBAULT
Designer: JOUBERT-NIVELT
Year built: 2009
Stability index: 119.8

Performance data

Polar CSV

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

6,42.9,4.518507,52,5.02,60,5.27,75,5.66,90,5.81,110,5.54,120,5.33,135,4.79,144.3,4.248331,150,3.99
8,40.8,5.350101,52,5.99,60,6.22,75,6.57,90,6.72,110,6.6,120,6.44,135,5.92,148.7,5.172865,150,5.1
10,39,5.880491,52,6.54,60,6.72,75,7.01,90,7.18,110,7.16,120,7.07,135,6.72,150,6.06,152,5.945993
12,37.6,6.146742,52,6.85,60,7.01,75,7.24,90,7.52,110,7.57,120,7.53,135,7.21,150,6.76,158.3,6.425348
14,37.2,6.264674,52,7,60,7.19,75,7.41,90,7.79,110,7.94,120,7.95,135,7.64,150,7.21,171.8,6.627761
16,37.2,6.34,52,7.07,60,7.28,75,7.6,90,7.97,110,8.29,120,8.37,135,8.1,150,7.62,177.2,7.038403
20,37.8,6.416462,52,7.12,60,7.37,75,7.81,90,8.22,110,9,120,9.29,135,9.2,150,8.5,177.2,7.799311

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.02	5.27	5.66	5.81	5.54	5.33	4.79	3.99
8	5.99	6.22	6.57	6.72	6.6	6.44	5.92	5.1
10	6.54	6.72	7.01	7.18	7.16	7.07	6.72	6.06
12	6.85	7.01	7.24	7.52	7.57	7.53	7.21	6.76
14	7	7.19	7.41	7.79	7.94	7.95	7.64	7.21
16	7.07	7.28	7.6	7.97	8.29	8.37	8.1	7.62
20	7.12	7.37	7.81	8.22	9	9.29	9.2	8.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.31	144.3°	3.45
8	40.8°	4.05	148.7°	4.42
10	39°	4.57	152°	5.25
12	37.6°	4.87	158.3°	5.97
14	37.2°	4.99	171.8°	6.56
16	37.2°	5.05	177.2°	7.03
20	37.8°	5.07	177.2°	7.79

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°	5.02	5.99	6.54	6.85	7.00	7.07	7.12
60°	5.27	6.22	6.72	7.01	7.19	7.28	7.37
75°	5.66	6.57	7.01	7.24	7.41	7.60	7.81
90°	5.81	6.72	7.18	7.52	7.79	7.97	8.22
110°	5.54	6.60	7.16	7.57	7.94	8.29	9.00
120°	5.33	6.44	7.07	7.53	7.95	8.37	9.29
135°	4.79	5.92	6.72	7.21	7.64	8.10	9.20
150°	3.99	5.10	6.06	6.76	7.21	7.62	8.50