AJAJA: ORC Rating

GPH

754.9

OSN

732.6

LOA

8.64 m

Displacement

3065 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6074

Medium

0.828

High

0.9374

Triple Offshore

Low

0.7812

Medium

1.0113

High

1.1156

Boat Specifications

Dimensions

Length overall: 8.64 m
Beam: 2.86 m
Draft: 1.68 m
Displacement: 3065 kg
Crew weight: 424 kg
Wetted surface: 17.52 m²

Sails

Mainsail: 19.36 m²
Genoa: 26.41 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: CUMULUS
Builder: ALBIN MARIN
Designer: Peter Norlin
Year built: 1968

Performance data

Polar CSV

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

6,41.6,4.065268,52,4.59,60,4.82,75,5,90,4.92,110,4.52,120,4.26,135,3.75,150,3.24,156.1,3.084482
8,40.8,4.768855,52,5.39,60,5.62,75,5.79,90,5.77,110,5.45,120,5.13,135,4.63,150,4.14,165.3,3.773516
10,40.5,5.299801,52,5.85,60,6.01,75,6.14,90,6.16,110,6.04,120,5.85,135,5.4,150,4.89,171.6,4.427497
12,39.9,5.487736,52,6.04,60,6.19,75,6.34,90,6.39,110,6.33,120,6.22,135,5.97,150,5.58,172.6,5.08233
14,39.6,5.528782,52,6.1,60,6.27,75,6.49,90,6.62,110,6.58,120,6.48,135,6.28,150,6.05,175.5,5.667471
16,39.7,5.536785,52,6.11,60,6.3,75,6.59,90,6.81,110,6.85,120,6.75,135,6.53,150,6.33,178.7,6.06156
20,41.1,5.507168,52,6.06,60,6.28,75,6.64,90,7.02,110,7.33,120,7.3,135,7.08,150,6.84,179.1,6.570811

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.59	4.82	5	4.92	4.52	4.26	3.75	3.24
8	5.39	5.62	5.79	5.77	5.45	5.13	4.63	4.14
10	5.85	6.01	6.14	6.16	6.04	5.85	5.4	4.89
12	6.04	6.19	6.34	6.39	6.33	6.22	5.97	5.58
14	6.1	6.27	6.49	6.62	6.58	6.48	6.28	6.05
16	6.11	6.3	6.59	6.81	6.85	6.75	6.53	6.33
20	6.06	6.28	6.64	7.02	7.33	7.3	7.08	6.84

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.6°	3.04	156.1°	2.82
8	40.8°	3.61	165.3°	3.65
10	40.5°	4.03	171.6°	4.38
12	39.9°	4.21	172.6°	5.04
14	39.6°	4.26	175.5°	5.65
16	39.7°	4.26	178.7°	6.06
20	41.1°	4.15	179.1°	6.57

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°	4.59	5.39	5.85	6.04	6.10	6.11	6.06
60°	4.82	5.62	6.01	6.19	6.27	6.30	6.28
75°	5.00	5.79	6.14	6.34	6.49	6.59	6.64
90°	4.92	5.77	6.16	6.39	6.62	6.81	7.02
110°	4.52	5.45	6.04	6.33	6.58	6.85	7.33
120°	4.26	5.13	5.85	6.22	6.48	6.75	7.30
135°	3.75	4.63	5.40	5.97	6.28	6.53	7.08
150°	3.24	4.14	4.89	5.58	6.05	6.33	6.84