Piika: ORC Rating

GPH

657.8

OSN

638

LOA

10.43 m

Displacement

5100 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6112

Medium

0.8375

High

0.966

Triple Offshore

Low

0.7908

Medium

1.0334

High

1.1552

Boat Specifications

Dimensions

Length overall: 10.43 m
Beam: 3.24 m
Draft: 1.8 m
Displacement: 5100 kg
Crew weight: 420 kg
Wetted surface: 23.82 m²

Sails

Mainsail: 30.06 m²
Genoa: 33.81 m²
Spinnaker: 71.85 m²
Asymmetric spinnaker: 0 m²

Design

Type: EF 34
Builder: EF MARINE
Designer: STRÅHLMANN
Year built: 2000
Stability index: 123.7

Performance data

Polar CSV

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

6,43.6,4.446458,52,4.96,60,5.26,75,5.5,90,5.43,110,5.32,120,5.16,135,4.65,145.6,4.132765,150,3.93
8,42,5.247968,52,5.89,60,6.2,75,6.44,90,6.41,110,6.46,120,6.31,135,5.75,150,5,150.2,4.989828
10,41.8,5.929098,52,6.55,60,6.77,75,6.93,90,6.96,110,7.08,120,7,135,6.64,150,5.93,152,5.832736
12,40.8,6.24839,52,6.86,60,7.04,75,7.2,90,7.24,110,7.44,120,7.38,135,7.13,150,6.7,156.8,6.397317
14,40,6.344279,52,6.98,60,7.18,75,7.4,90,7.48,110,7.78,120,7.75,135,7.49,150,7.14,168.2,6.630112
16,39.6,6.372376,52,7.04,60,7.24,75,7.55,90,7.72,110,8.04,120,8.14,135,7.88,150,7.48,177.2,6.988343
20,39.6,6.411311,52,7.05,60,7.29,75,7.7,90,8.11,110,8.39,120,8.77,135,8.74,150,8.23,179,7.641164

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.96	5.26	5.5	5.43	5.32	5.16	4.65	3.93
8	5.89	6.2	6.44	6.41	6.46	6.31	5.75	5
10	6.55	6.77	6.93	6.96	7.08	7	6.64	5.93
12	6.86	7.04	7.2	7.24	7.44	7.38	7.13	6.7
14	6.98	7.18	7.4	7.48	7.78	7.75	7.49	7.14
16	7.04	7.24	7.55	7.72	8.04	8.14	7.88	7.48
20	7.05	7.29	7.7	8.11	8.39	8.77	8.74	8.23

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.22	145.6°	3.41
8	42°	3.9	150.2°	4.33
10	41.8°	4.42	152°	5.15
12	40.8°	4.73	156.8°	5.88
14	40°	4.86	168.2°	6.49
16	39.6°	4.91	177.2°	6.98
20	39.6°	4.94	179°	7.64

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°	4.96	5.89	6.55	6.86	6.98	7.04	7.05
60°	5.26	6.20	6.77	7.04	7.18	7.24	7.29
75°	5.50	6.44	6.93	7.20	7.40	7.55	7.70
90°	5.43	6.41	6.96	7.24	7.48	7.72	8.11
110°	5.32	6.46	7.08	7.44	7.78	8.04	8.39
120°	5.16	6.31	7.00	7.38	7.75	8.14	8.77
135°	4.65	5.75	6.64	7.13	7.49	7.88	8.74
150°	3.93	5.00	5.93	6.70	7.14	7.48	8.23