ORSA MAGGIORE: ORC Rating

GPH

462.2

OSN

447.6

LOA

28.27 m

Displacement

66517 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8209

Medium

1.1608

High

1.4048

Triple Offshore

Low

1.0796

Medium

1.4888

High

1.7342

Boat Specifications

Dimensions

Length overall: 28.27 m
Beam: 6.53 m
Draft: 4.28 m
Displacement: 66517 kg
Crew weight: 1700 kg
Wetted surface: 126.59 m²

Sails

Mainsail: 136.91 m²
Genoa: 186.27 m²
Spinnaker: 359.46 m²
Asymmetric spinnaker: 0 m²

Design

Type: Ketch
Builder: Tencara
Designer: A. Vallicelli & C.
Year built: 1994
Stability index: 127.9

Performance data

Polar CSV

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

6,45.9,6.121457,52,6.69,60,7.21,75,7.67,90,7.63,110,7.29,120,7.11,135,6.39,138.9,6.06452,150,5.28
8,43.8,7.412434,52,8.24,60,8.76,75,9.21,90,9.16,110,9.07,120,8.91,135,8.05,141.5,7.44945,150,6.73
10,43,8.43641,52,9.41,60,9.97,75,10.42,90,10.4,110,10.52,120,10.4,135,9.47,143.9,8.564464,150,7.99
12,42.6,9.156401,52,10.24,60,10.72,75,11.09,90,11.3,110,11.35,120,11.29,135,10.65,144.3,9.740377,150,9.14
14,41.8,9.564359,52,10.68,60,11.13,75,11.48,90,11.76,110,11.71,120,11.79,135,11.37,147.8,10.387699,150,10.15
16,41.2,9.834999,52,10.95,60,11.35,75,11.75,90,12.07,110,12.06,120,12.17,135,11.85,150,10.96,151.1,10.851382
20,40.5,10.139321,52,11.2,60,11.58,75,12.06,90,12.35,110,12.76,120,12.69,135,12.78,150,11.91,168.2,10.931001

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.69	7.21	7.67	7.63	7.29	7.11	6.39	5.28
8	8.24	8.76	9.21	9.16	9.07	8.91	8.05	6.73
10	9.41	9.97	10.42	10.4	10.52	10.4	9.47	7.99
12	10.24	10.72	11.09	11.3	11.35	11.29	10.65	9.14
14	10.68	11.13	11.48	11.76	11.71	11.79	11.37	10.15
16	10.95	11.35	11.75	12.07	12.06	12.17	11.85	10.96
20	11.2	11.58	12.06	12.35	12.76	12.69	12.78	11.91

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.9°	4.26	138.9°	4.57
8	43.8°	5.35	141.5°	5.83
10	43°	6.17	143.9°	6.92
12	42.6°	6.74	144.3°	7.91
14	41.8°	7.13	147.8°	8.79
16	41.2°	7.4	151.1°	9.5
20	40.5°	7.71	168.2°	10.7

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°	6.69	8.24	9.41	10.24	10.68	10.95	11.20
60°	7.21	8.76	9.97	10.72	11.13	11.35	11.58
75°	7.67	9.21	10.42	11.09	11.48	11.75	12.06
90°	7.63	9.16	10.40	11.30	11.76	12.07	12.35
110°	7.29	9.07	10.52	11.35	11.71	12.06	12.76
120°	7.11	8.91	10.40	11.29	11.79	12.17	12.69
135°	6.39	8.05	9.47	10.65	11.37	11.85	12.78
150°	5.28	6.73	7.99	9.14	10.15	10.96	11.91