INVINCIBLE: ORC Rating

GPH

648.3

OSN

625

LOA

11.01 m

Displacement

4945 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6127

Medium

0.8587

High

1.0021

Triple Offshore

Low

0.7907

Medium

1.0539

High

1.1914

Boat Specifications

Dimensions

Length overall: 11.01 m
Beam: 3.68 m
Draft: 1.86 m
Displacement: 4945 kg
Crew weight: 579 kg
Wetted surface: 24.86 m²

Sails

Mainsail: 33.17 m²
Genoa: 33.16 m²
Spinnaker: 81.66 m²
Asymmetric spinnaker: 0 m²

Design

Type: FARR 1104
Builder: COMPASS YACHTS
Designer: BRUCE FARR
Year built: 1975
Stability index: 106

Performance data

Polar CSV

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

4,43.7,3.264325,52,3.69,60,3.93,75,4.09,90,3.94,110,3.87,120,3.67,135,3.15,146.4,2.761366,150,2.65
6,43.7,4.523027,52,5,60,5.28,75,5.46,90,5.34,110,5.34,120,5.13,135,4.51,146.4,4.009983,150,3.86
8,41.8,5.365699,52,5.97,60,6.23,75,6.39,90,6.36,110,6.47,120,6.3,135,5.72,150,4.96,150.5,4.940509
10,40.5,5.996797,52,6.63,60,6.82,75,6.95,90,7.05,110,7.16,120,7.05,135,6.68,150,5.96,150.7,5.916961
12,38.8,6.338713,52,6.99,60,7.15,75,7.29,90,7.39,110,7.58,120,7.52,135,7.24,150,6.78,157.2,6.486863
14,38.2,6.477006,52,7.14,60,7.33,75,7.53,90,7.59,110,7.93,120,7.92,135,7.67,150,7.28,164.9,6.825673
16,37.8,6.54302,52,7.22,60,7.41,75,7.69,90,7.84,110,8.21,120,8.3,135,8.08,150,7.67,171.3,7.142179
20,37.9,6.627938,52,7.3,60,7.52,75,7.88,90,8.2,110,8.6,120,9.02,135,8.95,150,8.45,176.8,7.79215
24,38.7,6.66299,52,7.32,60,7.56,75,7.99,90,8.42,110,8.93,120,9.55,135,10.19,150,9.37,175.7,8.513966

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
4	3.69	3.93	4.09	3.94	3.87	3.67	3.15	2.65
6	5	5.28	5.46	5.34	5.34	5.13	4.51	3.86
8	5.97	6.23	6.39	6.36	6.47	6.3	5.72	4.96
10	6.63	6.82	6.95	7.05	7.16	7.05	6.68	5.96
12	6.99	7.15	7.29	7.39	7.58	7.52	7.24	6.78
14	7.14	7.33	7.53	7.59	7.93	7.92	7.67	7.28
16	7.22	7.41	7.69	7.84	8.21	8.3	8.08	7.67
20	7.3	7.52	7.88	8.2	8.6	9.02	8.95	8.45
24	7.32	7.56	7.99	8.42	8.93	9.55	10.19	9.37

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
4	43.7°	2.36	146.4°	2.3
6	43.7°	3.27	146.4°	3.34
8	41.8°	4	150.5°	4.3
10	40.5°	4.56	150.7°	5.16
12	38.8°	4.94	157.2°	5.98
14	38.2°	5.09	164.9°	6.59
16	37.8°	5.17	171.3°	7.06
20	37.9°	5.23	176.8°	7.78
24	38.7°	5.2	175.7°	8.49

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 4 kt6 kt8 kt10 kt12 kt14 kt16 kt20 kt24 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 4 kt (kt)	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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	3.69	5.00	5.97	6.63	6.99	7.14	7.22	7.30	7.32
60°	3.93	5.28	6.23	6.82	7.15	7.33	7.41	7.52	7.56
75°	4.09	5.46	6.39	6.95	7.29	7.53	7.69	7.88	7.99
90°	3.94	5.34	6.36	7.05	7.39	7.59	7.84	8.20	8.42
110°	3.87	5.34	6.47	7.16	7.58	7.93	8.21	8.60	8.93
120°	3.67	5.13	6.30	7.05	7.52	7.92	8.30	9.02	9.55
135°	3.15	4.51	5.72	6.68	7.24	7.67	8.08	8.95	10.19
150°	2.65	3.86	4.96	5.96	6.78	7.28	7.67	8.45	9.37