MEFISTOFELE: ORC Rating

GPH

619.5

OSN

603.6

LOA

12.495 m

Displacement

9176 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6667

Medium

0.8875

High

1.0197

Triple Offshore

Low

0.8552

Medium

1.089

High

1.2086

Boat Specifications

Dimensions

Length overall: 12.495 m
Beam: 3.74 m
Draft: 2.22 m
Displacement: 9176 kg
Crew weight: 830 kg
Wetted surface: 32.9 m²

Sails

Mainsail: 49.25 m²
Genoa: 45.43 m²
Spinnaker: 128.52 m²
Asymmetric spinnaker: 121.78 m²

Design

Type: proto IOR 79
Builder: Pezzini
Designer: Lombardi
Year built: 1979

Performance data

Polar CSV

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

6,42,4.736627,52,5.31,60,5.58,75,5.81,90,5.76,110,5.77,120,5.61,135,5.12,145.5,4.586676,150,4.36
8,40.5,5.510215,52,6.24,60,6.54,75,6.76,90,6.79,110,6.92,120,6.78,135,6.25,150,5.43,150.5,5.400091
10,40.9,6.165216,52,6.86,60,7.07,75,7.23,90,7.32,110,7.45,120,7.4,135,7.12,150,6.397041
12,40.5,6.483379,52,7.14,60,7.32,75,7.48,90,7.54,110,7.78,120,7.75,135,7.55,150,7.14,157,6.822343
14,39.9,6.608746,52,7.26,60,7.45,75,7.66,90,7.76,110,8.06,120,8.09,135,7.88,150,7.54,175,6.926357
16,39.8,6.690238,52,7.33,60,7.53,75,7.8,90,7.96,110,8.24,120,8.42,135,8.25,150,7.85,180,7.38
20,38.6,6.781652,52,7.4,60,7.57,75,7.96,90,8.32,110,8.55,120,8.87,135,8.99,150,8.56,180,8.01

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.31	5.58	5.81	5.76	5.77	5.61	5.12	4.36
8	6.24	6.54	6.76	6.79	6.92	6.78	6.25	5.43
10	6.86	7.07	7.23	7.32	7.45	7.4	7.12	6.4
12	7.14	7.32	7.48	7.54	7.78	7.75	7.55	7.14
14	7.26	7.45	7.66	7.76	8.06	8.09	7.88	7.54
16	7.33	7.53	7.8	7.96	8.24	8.42	8.25	7.85
20	7.4	7.57	7.96	8.32	8.55	8.87	8.99	8.56

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.52	145.5°	3.78
8	40.5°	4.19	150.5°	4.7
10	40.9°	4.66	150°	5.54
12	40.5°	4.93	157°	6.28
14	39.9°	5.07	175°	6.9
16	39.8°	5.14	180°	7.38
20	38.6°	5.3	180°	8.01

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°	5.31	6.24	6.86	7.14	7.26	7.33	7.40
60°	5.58	6.54	7.07	7.32	7.45	7.53	7.57
75°	5.81	6.76	7.23	7.48	7.66	7.80	7.96
90°	5.76	6.79	7.32	7.54	7.76	7.96	8.32
110°	5.77	6.92	7.45	7.78	8.06	8.24	8.55
120°	5.61	6.78	7.40	7.75	8.09	8.42	8.87
135°	5.12	6.25	7.12	7.55	7.88	8.25	8.99
150°	4.36	5.43	6.40	7.14	7.54	7.85	8.56