Alli: ORC Rating

GPH

730.4

OSN

709.5

LOA

9.15 m

Displacement

5100 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.553

Medium

0.7496

High

0.853

Triple Offshore

Low

0.7134

Medium

0.9309

High

1.0309

Boat Specifications

Dimensions

Length overall: 9.15 m
Beam: 3.15 m
Draft: 1.45 m
Displacement: 5100 kg
Crew weight: 488 kg
Wetted surface: 26.46 m²

Sails

Mainsail: 26.38 m²
Genoa: 32.39 m²
Spinnaker: 68.87 m²
Asymmetric spinnaker: 61.87 m²

Design

Type: Allegro 30
Builder: Allegro båt ab
Designer: Lars-Olof Norlin
Year built: 1985

Performance data

Polar CSV

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

6,44.2,3.933545,52,4.38,60,4.67,75,4.88,90,4.83,110,4.87,120,4.73,135,4.32,148,3.796954,150,3.72
8,42.8,4.633858,52,5.17,60,5.48,75,5.74,90,5.8,110,5.9,120,5.76,135,5.29,150,4.68,152,4.598234
10,42.8,5.219905,52,5.8,60,6.07,75,6.27,90,6.4,110,6.49,120,6.42,135,6.12,150,5.5,154,5.318237
12,42.8,5.587888,52,6.14,60,6.35,75,6.53,90,6.67,110,6.81,120,6.77,135,6.57,150,6.19,159,5.848452
14,42.6,5.719354,52,6.25,60,6.47,75,6.7,90,6.8,110,7.09,120,7.08,135,6.88,150,6.59,180,6.08
16,42.6,5.746525,52,6.29,60,6.52,75,6.81,90,6.98,110,7.34,120,7.39,135,7.2,150,6.88,180,6.5
20,43.9,5.731724,52,6.25,60,6.51,75,6.88,90,7.26,110,7.63,120,7.88,135,7.86,150,7.5,180,7.07

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.38	4.67	4.88	4.83	4.87	4.73	4.32	3.72
8	5.17	5.48	5.74	5.8	5.9	5.76	5.29	4.68
10	5.8	6.07	6.27	6.4	6.49	6.42	6.12	5.5
12	6.14	6.35	6.53	6.67	6.81	6.77	6.57	6.19
14	6.25	6.47	6.7	6.8	7.09	7.08	6.88	6.59
16	6.29	6.52	6.81	6.98	7.34	7.39	7.2	6.88
20	6.25	6.51	6.88	7.26	7.63	7.88	7.86	7.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.82	148°	3.22
8	42.8°	3.4	152°	4.06
10	42.8°	3.83	154°	4.78
12	42.8°	4.1	159°	5.46
14	42.6°	4.21	180°	6.08
16	42.6°	4.23	180°	6.5
20	43.9°	4.13	180°	7.07

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°	4.38	5.17	5.80	6.14	6.25	6.29	6.25
60°	4.67	5.48	6.07	6.35	6.47	6.52	6.51
75°	4.88	5.74	6.27	6.53	6.70	6.81	6.88
90°	4.83	5.80	6.40	6.67	6.80	6.98	7.26
110°	4.87	5.90	6.49	6.81	7.09	7.34	7.63
120°	4.73	5.76	6.42	6.77	7.08	7.39	7.88
135°	4.32	5.29	6.12	6.57	6.88	7.20	7.86
150°	3.72	4.68	5.50	6.19	6.59	6.88	7.50