SECOND WAVE: ORC Rating

GPH

755.2

OSN

732

LOA

7.56 m

Displacement

1732 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6001

Medium

0.8198

High

0.9586

Triple Offshore

Low

0.7727

Medium

1.0107

High

1.152

Boat Specifications

Dimensions

Length overall: 7.56 m
Beam: 2.97 m
Draft: 1.51 m
Displacement: 1732 kg
Crew weight: 356 kg
Wetted surface: 13.87 m²

Sails

Mainsail: 12.41 m²
Genoa: 18.41 m²
Spinnaker: 41.56 m²
Asymmetric spinnaker: 0 m²

Design

Type: ROBBER 3E
Builder: BEPS LTD QUAY WORK
Designer: LINQUIST
Year built: 1977

Performance data

Polar CSV

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

6,43.8,3.796275,52,4.21,60,4.45,75,4.63,90,4.61,110,4.71,120,4.57,135,4.16,147.8,3.651648,150,3.57
8,42.7,4.476711,52,5,60,5.27,75,5.45,90,5.58,110,5.67,120,5.55,135,5.12,150,4.5,151.1,4.454778
10,42.5,5.018464,52,5.55,60,5.76,75,5.91,90,6.09,110,6.17,120,6.1,135,5.85,150,5.3,152.6,5.192521
12,40.9,5.318491,52,5.86,60,6.02,75,6.17,90,6.42,110,6.55,120,6.48,135,6.24,150,5.9,165.2,5.430154
14,39.9,5.552911,52,6.05,60,6.21,75,6.4,90,6.68,110,6.93,120,6.88,135,6.61,150,6.25,180,5.8
16,39.5,5.637456,52,6.18,60,6.38,75,6.63,90,6.81,110,7.27,120,7.26,135,6.99,150,6.59,180,6.16
20,40.7,5.671818,52,6.21,60,6.5,75,6.95,90,7.17,110,7.76,120,8.04,135,7.8,150,7.29,180,6.81

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.21	4.45	4.63	4.61	4.71	4.57	4.16	3.57
8	5	5.27	5.45	5.58	5.67	5.55	5.12	4.5
10	5.55	5.76	5.91	6.09	6.17	6.1	5.85	5.3
12	5.86	6.02	6.17	6.42	6.55	6.48	6.24	5.9
14	6.05	6.21	6.4	6.68	6.93	6.88	6.61	6.25
16	6.18	6.38	6.63	6.81	7.27	7.26	6.99	6.59
20	6.21	6.5	6.95	7.17	7.76	8.04	7.8	7.29

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.74	147.8°	3.09
8	42.7°	3.29	151.1°	3.9
10	42.5°	3.7	152.6°	4.61
12	40.9°	4.02	165.2°	5.25
14	39.9°	4.26	180°	5.8
16	39.5°	4.35	180°	6.16
20	40.7°	4.3	180°	6.81

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°	4.21	5.00	5.55	5.86	6.05	6.18	6.21
60°	4.45	5.27	5.76	6.02	6.21	6.38	6.50
75°	4.63	5.45	5.91	6.17	6.40	6.63	6.95
90°	4.61	5.58	6.09	6.42	6.68	6.81	7.17
110°	4.71	5.67	6.17	6.55	6.93	7.27	7.76
120°	4.57	5.55	6.10	6.48	6.88	7.26	8.04
135°	4.16	5.12	5.85	6.24	6.61	6.99	7.80
150°	3.57	4.50	5.30	5.90	6.25	6.59	7.29