CYNTHIA: ORC Rating

GPH

623.8

OSN

602.1

LOA

12.479 m

Displacement

8900 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6645

Medium

0.8986

High

1.0602

Triple Offshore

Low

0.8401

Medium

1.0825

High

1.2281

Boat Specifications

Dimensions

Length overall: 12.479 m
Beam: 3.43 m
Draft: 3.01 m
Displacement: 8900 kg
Crew weight: 653 kg
Wetted surface: 29.85 m²

Sails

Mainsail: 43.35 m²
Genoa: 54.32 m²
Spinnaker: 108.76 m²
Asymmetric spinnaker: 104.53 m²

Design

Type: MORGAN 41
Builder: MORGAN
Designer: MORGAN YACHT
Year built: 1968
Stability index: 167.4

Performance data

Polar CSV

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

6,40.5,4.826369,52,5.39,60,5.58,75,5.67,90,5.54,110,5.48,120,5.32,135,4.85,145.1,4.377238,150,4.14
8,38.7,5.599474,52,6.26,60,6.42,75,6.5,90,6.41,110,6.52,120,6.36,135,5.9,149.6,5.182527,150,5.17
10,37.2,6.164238,52,6.81,60,6.93,75,7,90,7.05,110,7.14,120,7.03,135,6.69,150,6.04,153.2,5.881787
12,35.4,6.526584,52,7.15,60,7.24,75,7.32,90,7.44,110,7.53,120,7.46,135,7.2,150,6.74,158.6,6.379854
14,35,6.82413,52,7.38,60,7.47,75,7.56,90,7.72,110,7.86,120,7.81,135,7.56,150,7.2,170,6.620582
16,35,7.019454,52,7.54,60,7.65,75,7.78,90,7.94,110,8.16,120,8.13,135,7.88,150,7.54,177.2,7.018379
20,35,7.190362,52,7.74,60,7.88,75,8.09,90,8.2,110,8.67,120,8.71,135,8.5,150,8.14,179,7.671168

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.39	5.58	5.67	5.54	5.48	5.32	4.85	4.14
8	6.26	6.42	6.5	6.41	6.52	6.36	5.9	5.17
10	6.81	6.93	7	7.05	7.14	7.03	6.69	6.04
12	7.15	7.24	7.32	7.44	7.53	7.46	7.2	6.74
14	7.38	7.47	7.56	7.72	7.86	7.81	7.56	7.2
16	7.54	7.65	7.78	7.94	8.16	8.13	7.88	7.54
20	7.74	7.88	8.09	8.2	8.67	8.71	8.5	8.14

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	40.5°	3.67	145.1°	3.59
8	38.7°	4.37	149.6°	4.47
10	37.2°	4.91	153.2°	5.25
12	35.4°	5.32	158.6°	5.94
14	35°	5.59	170°	6.52
16	35°	5.75	177.2°	7.01
20	35°	5.89	179°	7.67

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°	5.39	6.26	6.81	7.15	7.38	7.54	7.74
60°	5.58	6.42	6.93	7.24	7.47	7.65	7.88
75°	5.67	6.50	7.00	7.32	7.56	7.78	8.09
90°	5.54	6.41	7.05	7.44	7.72	7.94	8.20
110°	5.48	6.52	7.14	7.53	7.86	8.16	8.67
120°	5.32	6.36	7.03	7.46	7.81	8.13	8.71
135°	4.85	5.90	6.69	7.20	7.56	7.88	8.50
150°	4.14	5.17	6.04	6.74	7.20	7.54	8.14