ROBY & 14: ORC Rating

GPH

535.3

OSN

521.2

LOA

12.411 m

Displacement

5008 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7771

Medium

1.02

High

1.1623

Triple Offshore

Low

0.9986

Medium

1.2535

High

1.4115

Boat Specifications

Dimensions

Length overall: 12.411 m
Beam: 3.96 m
Draft: 2.6 m
Displacement: 5008 kg
Crew weight: 820 kg
Wetted surface: 29.75 m²

Sails

Mainsail: 56.3 m²
Genoa: 41.01 m²
Spinnaker: 155.36 m²
Asymmetric spinnaker: 0 m²

Design

Type: Farr 40
Builder: US Watercraft
Designer: Farr
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.

6,42.8,5.587888,52,6.24,60,6.61,75,6.93,90,6.88,110,6.72,120,6.55,135,5.93,143.5,5.386531,150,5
8,41.2,6.64527,52,7.39,60,7.63,75,7.8,90,7.79,110,7.88,120,7.82,135,7.38,143.6,6.783504,150,6.31
10,38.6,6.999177,52,7.8,60,8.02,75,8.26,90,8.29,110,8.45,120,8.51,135,8.14,150,7.390083
12,38.2,7.202329,52,7.95,60,8.21,75,8.64,90,8.81,110,8.86,120,9.16,135,8.86,150,8.1,157,7.734886
14,37.9,7.274256,52,8.03,60,8.32,75,8.86,90,9.28,110,9.29,120,9.64,135,9.69,150,8.73,170,7.808631
16,37.1,7.359727,52,8.11,60,8.38,75,9.01,90,9.63,110,9.71,120,10.11,135,10.65,150,9.46,180,8.25
20,37.5,7.449392,52,8.26,60,8.64,75,9.24,90,9.98,110,10.78,120,11.15,135,12.31,145,12.073461,150,11.42

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.24	6.61	6.93	6.88	6.72	6.55	5.93	5
8	7.39	7.63	7.8	7.79	7.88	7.82	7.38	6.31
10	7.8	8.02	8.26	8.29	8.45	8.51	8.14	7.38
12	7.95	8.21	8.64	8.81	8.86	9.16	8.86	8.1
14	8.03	8.32	8.86	9.28	9.29	9.64	9.69	8.73
16	8.11	8.38	9.01	9.63	9.71	10.11	10.65	9.46
20	8.26	8.64	9.24	9.98	10.78	11.15	12.31	11.42

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	4.1	143.5°	4.33
8	41.2°	5	143.6°	5.46
10	38.6°	5.47	150°	6.4
12	38.2°	5.66	157°	7.12
14	37.9°	5.74	170°	7.69
16	37.1°	5.87	180°	8.25
20	37.5°	5.91	145°	9.89

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°	6.24	7.39	7.80	7.95	8.03	8.11	8.26
60°	6.61	7.63	8.02	8.21	8.32	8.38	8.64
75°	6.93	7.80	8.26	8.64	8.86	9.01	9.24
90°	6.88	7.79	8.29	8.81	9.28	9.63	9.98
110°	6.72	7.88	8.45	8.86	9.29	9.71	10.78
120°	6.55	7.82	8.51	9.16	9.64	10.11	11.15
135°	5.93	7.38	8.14	8.86	9.69	10.65	12.31
150°	5.00	6.31	7.38	8.10	8.73	9.46	11.42