Alli: ORC Rating

GPH

732.3

OSN

710.1

LOA

10.455 m

Displacement

5100 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5517

Medium

0.7493

High

0.8548

Triple Offshore

Low

0.7104

Medium

0.9289

High

1.0302

Boat Specifications

Dimensions

Length overall: 10.455 m
Beam: 3.15 m
Draft: 1.46 m
Displacement: 5100 kg
Crew weight: 483 kg
Wetted surface: 26.45 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
Stability index: 148.9

Performance data

Polar CSV

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

6,44.2,3.919596,52,4.35,60,4.63,75,4.83,90,4.8,110,4.86,120,4.7,135,4.29,148.4,3.768814,150,3.71
8,42.6,4.605371,52,5.15,60,5.44,75,5.69,90,5.78,110,5.88,120,5.73,135,5.26,150,4.68,152.3,4.585531
10,42.6,5.189533,52,5.77,60,6.03,75,6.23,90,6.39,110,6.47,120,6.4,135,6.09,150,5.51,153.8,5.338485
12,42.9,5.596942,52,6.12,60,6.33,75,6.5,90,6.66,110,6.8,120,6.76,135,6.56,150,6.2,159.2,5.851358
14,42.4,5.714631,52,6.25,60,6.47,75,6.68,90,6.8,110,7.09,120,7.07,135,6.87,150,6.59,173,6.10551
16,42.4,5.755257,52,6.3,60,6.52,75,6.8,90,6.96,110,7.35,120,7.39,135,7.2,150,6.89,179,6.480987
20,43.5,5.73497,52,6.27,60,6.52,75,6.89,90,7.25,110,7.66,120,7.92,135,7.85,150,7.51,179,7.051074

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.35	4.63	4.83	4.8	4.86	4.7	4.29	3.71
8	5.15	5.44	5.69	5.78	5.88	5.73	5.26	4.68
10	5.77	6.03	6.23	6.39	6.47	6.4	6.09	5.51
12	6.12	6.33	6.5	6.66	6.8	6.76	6.56	6.2
14	6.25	6.47	6.68	6.8	7.09	7.07	6.87	6.59
16	6.3	6.52	6.8	6.96	7.35	7.39	7.2	6.89
20	6.27	6.52	6.89	7.25	7.66	7.92	7.85	7.51

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.81	148.4°	3.21
8	42.6°	3.39	152.3°	4.06
10	42.6°	3.82	153.8°	4.79
12	42.9°	4.1	159.2°	5.47
14	42.4°	4.22	173°	6.06
16	42.4°	4.25	179°	6.48
20	43.5°	4.16	179°	7.05

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°	4.35	5.15	5.77	6.12	6.25	6.30	6.27
60°	4.63	5.44	6.03	6.33	6.47	6.52	6.52
75°	4.83	5.69	6.23	6.50	6.68	6.80	6.89
90°	4.80	5.78	6.39	6.66	6.80	6.96	7.25
110°	4.86	5.88	6.47	6.80	7.09	7.35	7.66
120°	4.70	5.73	6.40	6.76	7.07	7.39	7.92
135°	4.29	5.26	6.09	6.56	6.87	7.20	7.85
150°	3.71	4.68	5.51	6.20	6.59	6.89	7.51