EMERALD: ORC Rating

GPH

649.4

OSN

630.1

LOA

10.546 m

Displacement

5791 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6248

Medium

0.8519

High

0.9845

Triple Offshore

Low

0.8042

Medium

1.0444

High

1.1685

Boat Specifications

Dimensions

Length overall: 10.546 m
Beam: 3.62 m
Draft: 2.01 m
Displacement: 5791 kg
Crew weight: 600 kg
Wetted surface: 26.9 m²

Sails

Mainsail: 31.37 m²
Genoa: 38.88 m²
Spinnaker: 82.31 m²
Asymmetric spinnaker: 72.97 m²

Design

Type: Ridas 35
Builder: Ridas Jaht
Designer: Lonngren/Ridas
Year built: 1997

Performance data

Polar CSV

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

6,42.4,4.509413,52,5.08,60,5.36,75,5.58,90,5.49,110,5.36,120,5.19,135,4.71,146,4.185576,150,4
8,40.7,5.27611,52,5.99,60,6.27,75,6.48,90,6.44,110,6.47,120,6.31,135,5.78,150,5.046041
10,40.5,5.970495,52,6.61,60,6.8,75,6.94,90,7,110,7.06,120,6.98,135,6.64,150,5.95,152,5.844061
12,39,6.279387,52,6.9,60,7.06,75,7.2,90,7.3,110,7.41,120,7.36,135,7.12,150,6.69,157,6.376935
14,38.2,6.387931,52,7.04,60,7.21,75,7.39,90,7.47,110,7.73,120,7.71,135,7.46,150,7.12,180,6.5
16,37.9,6.450517,52,7.1,60,7.28,75,7.56,90,7.67,110,8.06,120,8.07,135,7.81,150,7.43,180,6.98
20,38.2,6.477006,52,7.13,60,7.33,75,7.71,90,8.07,110,8.47,120,8.73,135,8.61,150,8.12,180,7.61

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.08	5.36	5.58	5.49	5.36	5.19	4.71	4
8	5.99	6.27	6.48	6.44	6.47	6.31	5.78	5.05
10	6.61	6.8	6.94	7	7.06	6.98	6.64	5.95
12	6.9	7.06	7.2	7.3	7.41	7.36	7.12	6.69
14	7.04	7.21	7.39	7.47	7.73	7.71	7.46	7.12
16	7.1	7.28	7.56	7.67	8.06	8.07	7.81	7.43
20	7.13	7.33	7.71	8.07	8.47	8.73	8.61	8.12

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.33	146°	3.47
8	40.7°	4	150°	4.37
10	40.5°	4.54	152°	5.16
12	39°	4.88	157°	5.87
14	38.2°	5.02	180°	6.5
16	37.9°	5.09	180°	6.98
20	38.2°	5.09	180°	7.61

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°	5.08	5.99	6.61	6.90	7.04	7.10	7.13
60°	5.36	6.27	6.80	7.06	7.21	7.28	7.33
75°	5.58	6.48	6.94	7.20	7.39	7.56	7.71
90°	5.49	6.44	7.00	7.30	7.47	7.67	8.07
110°	5.36	6.47	7.06	7.41	7.73	8.06	8.47
120°	5.19	6.31	6.98	7.36	7.71	8.07	8.73
135°	4.71	5.78	6.64	7.12	7.46	7.81	8.61
150°	4.00	5.05	5.95	6.69	7.12	7.43	8.12