Suvituuli: ORC Rating

GPH

726.6

OSN

704.8

LOA

8.8 m

Displacement

4000 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5642

Medium

0.7624

High

0.8819

Triple Offshore

Low

0.7222

Medium

0.9313

High

1.0397

Boat Specifications

Dimensions

Length overall: 8.8 m
Beam: 3.03 m
Draft: 1.69 m
Displacement: 4000 kg
Crew weight: 400 kg
Wetted surface: 18.54 m²

Sails

Mainsail: 17.39 m²
Genoa: 31.91 m²
Spinnaker: 65.83 m²
Asymmetric spinnaker: 0 m²

Design

Type: Half Tonner
Builder: Laxell
Designer: Pekka Laxell
Year built: 1970
Stability index: 109.5

Performance data

Polar CSV

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

6,42.6,4.034794,52,4.51,60,4.75,75,4.91,90,4.84,110,4.84,120,4.71,135,4.31,147.9,3.789301,150,3.7
8,41.2,4.67827,52,5.28,60,5.55,75,5.73,90,5.7,110,5.83,120,5.72,135,5.24,150,4.62,152,4.541606
10,41.7,5.303774,52,5.83,60,6.01,75,6.14,90,6.23,110,6.33,120,6.28,135,6.03,150,5.47,151.1,5.414268
12,40.2,5.590498,52,6.11,60,6.25,75,6.37,90,6.49,110,6.64,120,6.6,135,6.42,150,6.1,159.5,5.775767
14,39.4,5.719953,52,6.26,60,6.4,75,6.55,90,6.61,110,6.91,120,6.9,135,6.72,150,6.44,173.6,5.977251
16,38.8,5.786963,52,6.33,60,6.5,75,6.7,90,6.8,110,7.15,120,7.2,135,7.03,150,6.71,179,6.310961
20,38.7,5.855743,52,6.39,60,6.58,75,6.9,90,7.13,110,7.4,120,7.64,135,7.61,150,7.28,179,6.841042

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.51	4.75	4.91	4.84	4.84	4.71	4.31	3.7
8	5.28	5.55	5.73	5.7	5.83	5.72	5.24	4.62
10	5.83	6.01	6.14	6.23	6.33	6.28	6.03	5.47
12	6.11	6.25	6.37	6.49	6.64	6.6	6.42	6.1
14	6.26	6.4	6.55	6.61	6.91	6.9	6.72	6.44
16	6.33	6.5	6.7	6.8	7.15	7.2	7.03	6.71
20	6.39	6.58	6.9	7.13	7.4	7.64	7.61	7.28

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	2.97	147.9°	3.21
8	41.2°	3.52	152°	4.01
10	41.7°	3.96	151.1°	4.74
12	40.2°	4.27	159.5°	5.41
14	39.4°	4.42	173.6°	5.94
16	38.8°	4.51	179°	6.31
20	38.7°	4.57	179°	6.84

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°	4.51	5.28	5.83	6.11	6.26	6.33	6.39
60°	4.75	5.55	6.01	6.25	6.40	6.50	6.58
75°	4.91	5.73	6.14	6.37	6.55	6.70	6.90
90°	4.84	5.70	6.23	6.49	6.61	6.80	7.13
110°	4.84	5.83	6.33	6.64	6.91	7.15	7.40
120°	4.71	5.72	6.28	6.60	6.90	7.20	7.64
135°	4.31	5.24	6.03	6.42	6.72	7.03	7.61
150°	3.70	4.62	5.47	6.10	6.44	6.71	7.28