Bryza33: ORC Rating

GPH

610.2

OSN

592.2

LOA

9.98 m

Displacement

2692 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6599

Medium

0.8958

High

1.0167

Triple Offshore

Low

0.8554

Medium

1.1125

High

1.2513

Boat Specifications

Dimensions

Length overall: 9.98 m
Beam: 2.78 m
Draft: 2.25 m
Displacement: 2692 kg
Crew weight: 420 kg
Wetted surface: 22.75 m²

Sails

Mainsail: 33.9 m²
Genoa: 23.3 m²
Spinnaker: 68.73 m²
Asymmetric spinnaker: 0 m²

Design

Type: GP33
Builder: MKE; Bryza
Designer: Wojciech Denderski
Year built: 2009

Performance data

Polar CSV

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

6,42.8,4.729261,52,5.3,60,5.6,75,5.88,90,5.81,110,5.8,120,5.63,135,5.03,144,4.511648,150,4.21
8,42,5.772764,52,6.46,60,6.74,75,6.93,90,6.98,110,7.05,120,6.91,135,6.34,147,5.556413,150,5.38
10,40.5,6.338719,52,7.03,60,7.24,75,7.43,90,7.42,110,7.7,120,7.59,135,7.2,150,6.454776
12,39.8,6.45595,52,7.16,60,7.4,75,7.77,90,7.91,110,8.2,120,8.31,135,7.77,150,7.21,157,6.876661
14,39.8,6.494998,52,7.2,60,7.46,75,7.94,90,8.39,110,8.6,120,8.98,135,8.48,150,7.74,172,7.018302
16,39.8,6.612142,52,7.28,60,7.51,75,8.04,90,8.68,110,8.96,120,9.43,135,9.37,150,8.37,180,7.47
20,40.5,6.628038,52,7.33,60,7.64,75,8.3,90,8.89,110,9.82,120,10.31,135,11.44,150,10.1,152,9.808057

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.3	5.6	5.88	5.81	5.8	5.63	5.03	4.21
8	6.46	6.74	6.93	6.98	7.05	6.91	6.34	5.38
10	7.03	7.24	7.43	7.42	7.7	7.59	7.2	6.45
12	7.16	7.4	7.77	7.91	8.2	8.31	7.77	7.21
14	7.2	7.46	7.94	8.39	8.6	8.98	8.48	7.74
16	7.28	7.51	8.04	8.68	8.96	9.43	9.37	8.37
20	7.33	7.64	8.3	8.89	9.82	10.31	11.44	10.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.47	144°	3.65
8	42°	4.29	147°	4.66
10	40.5°	4.82	150°	5.59
12	39.8°	4.96	157°	6.33
14	39.8°	4.99	172°	6.95
16	39.8°	5.08	180°	7.47
20	40.5°	5.04	152°	8.66

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°	5.30	6.46	7.03	7.16	7.20	7.28	7.33
60°	5.60	6.74	7.24	7.40	7.46	7.51	7.64
75°	5.88	6.93	7.43	7.77	7.94	8.04	8.30
90°	5.81	6.98	7.42	7.91	8.39	8.68	8.89
110°	5.80	7.05	7.70	8.20	8.60	8.96	9.82
120°	5.63	6.91	7.59	8.31	8.98	9.43	10.31
135°	5.03	6.34	7.20	7.77	8.48	9.37	11.44
150°	4.21	5.38	6.45	7.21	7.74	8.37	10.10