Ragamuffin: ORC Rating

GPH

732.6

OSN

711.1

LOA

7.77 m

Displacement

1900 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5534

Medium

0.7567

High

0.8663

Triple Offshore

Low

0.7159

Medium

0.924

High

1.0349

Boat Specifications

Dimensions

Length overall: 7.77 m
Beam: 2.52 m
Draft: 1.44 m
Displacement: 1900 kg
Crew weight: 365 kg
Wetted surface: 14.34 m²

Sails

Mainsail: 18.84 m²
Genoa: 13.75 m²
Spinnaker: 42.1 m²
Asymmetric spinnaker: 0 m²

Design

Type: ALBIN EXPRESS
Builder: Albin Marin
Designer: PETER NORLIN
Year built: 1978

Performance data

Polar CSV

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

6,43.5,3.929006,52,4.37,60,4.62,75,4.8,90,4.97,110,5.01,120,4.86,135,4.38,148,3.761579,150,3.69
8,42,4.602064,52,5.18,60,5.45,75,5.63,90,5.84,110,5.91,120,5.8,135,5.32,150,4.64,152,4.552932
10,41.2,5.156729,52,5.7,60,5.87,75,6.01,90,6.24,110,6.31,120,6.25,135,6,150,5.48,153,5.353496
12,39.4,5.448191,52,5.97,60,6.11,75,6.24,90,6.48,110,6.69,120,6.62,135,6.36,150,6.05,170,5.544229
14,38.6,5.566073,52,6.11,60,6.26,75,6.45,90,6.62,110,7.08,120,7.03,135,6.74,150,6.38,180,5.97
16,38.2,5.573534,52,6.15,60,6.35,75,6.64,90,6.79,110,7.36,120,7.45,135,7.16,150,6.73,180,6.3
20,39.4,5.603484,52,6.15,60,6.37,75,6.82,90,7.22,110,7.7,120,8.13,135,8.12,150,7.53,180,6.99

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.37	4.62	4.8	4.97	5.01	4.86	4.38	3.69
8	5.18	5.45	5.63	5.84	5.91	5.8	5.32	4.64
10	5.7	5.87	6.01	6.24	6.31	6.25	6	5.48
12	5.97	6.11	6.24	6.48	6.69	6.62	6.36	6.05
14	6.11	6.26	6.45	6.62	7.08	7.03	6.74	6.38
16	6.15	6.35	6.64	6.79	7.36	7.45	7.16	6.73
20	6.15	6.37	6.82	7.22	7.7	8.13	8.12	7.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	2.85	148°	3.19
8	42°	3.42	152°	4.02
10	41.2°	3.88	153°	4.77
12	39.4°	4.21	170°	5.46
14	38.6°	4.35	180°	5.97
16	38.2°	4.38	180°	6.3
20	39.4°	4.33	180°	6.99

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°	4.37	5.18	5.70	5.97	6.11	6.15	6.15
60°	4.62	5.45	5.87	6.11	6.26	6.35	6.37
75°	4.80	5.63	6.01	6.24	6.45	6.64	6.82
90°	4.97	5.84	6.24	6.48	6.62	6.79	7.22
110°	5.01	5.91	6.31	6.69	7.08	7.36	7.70
120°	4.86	5.80	6.25	6.62	7.03	7.45	8.13
135°	4.38	5.32	6.00	6.36	6.74	7.16	8.12
150°	3.69	4.64	5.48	6.05	6.38	6.73	7.53