DE BUURMAN: ORC Rating

GPH

739.8

OSN

718.9

LOA

9.35 m

Displacement

4669 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.548

Medium

0.7389

High

0.8571

Triple Offshore

Low

0.705

Medium

0.9164

High

1.0285

Boat Specifications

Dimensions

Length overall: 9.35 m
Beam: 2.93 m
Draft: 1.53 m
Displacement: 4669 kg
Crew weight: 479 kg
Wetted surface: 20.47 m²

Sails

Mainsail: 20.85 m²
Genoa: 24.43 m²
Spinnaker: 59.32 m²
Asymmetric spinnaker: 0 m²

Design

Type: Victoire 933 x1.45
Builder: Victoria
Designer: D Koopmans
Year built: 1978

Performance data

Polar CSV

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

6,44.2,3.849852,52,4.28,60,4.54,75,4.74,90,4.75,110,4.86,120,4.75,135,4.38,148,3.867705,150,3.78
8,43.1,4.492152,52,5.01,60,5.31,75,5.57,90,5.7,110,5.87,120,5.75,135,5.29,150,4.7,152.5,4.599718
10,42.8,5.01547,52,5.61,60,5.89,75,6.1,90,6.3,110,6.42,120,6.36,135,6.08,150,5.5,153,5.364719
12,42.8,5.478856,52,6.01,60,6.22,75,6.38,90,6.59,110,6.73,120,6.69,135,6.49,150,6.15,160,5.778485
14,42.4,5.70109,52,6.21,60,6.4,75,6.57,90,6.72,110,7.01,120,6.98,135,6.78,150,6.51,180,6.02
16,42.2,5.777502,52,6.3,60,6.5,75,6.71,90,6.81,110,7.27,120,7.27,135,7.08,150,6.78,180,6.41
20,42.8,5.805951,52,6.32,60,6.55,75,6.9,90,7.14,110,7.54,120,7.78,135,7.68,150,7.34,180,6.95

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.28	4.54	4.74	4.75	4.86	4.75	4.38	3.78
8	5.01	5.31	5.57	5.7	5.87	5.75	5.29	4.7
10	5.61	5.89	6.1	6.3	6.42	6.36	6.08	5.5
12	6.01	6.22	6.38	6.59	6.73	6.69	6.49	6.15
14	6.21	6.4	6.57	6.72	7.01	6.98	6.78	6.51
16	6.3	6.5	6.71	6.81	7.27	7.27	7.08	6.78
20	6.32	6.55	6.9	7.14	7.54	7.78	7.68	7.34

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.76	148°	3.28
8	43.1°	3.28	152.5°	4.08
10	42.8°	3.68	153°	4.78
12	42.8°	4.02	160°	5.43
14	42.4°	4.21	180°	6.02
16	42.2°	4.28	180°	6.41
20	42.8°	4.26	180°	6.95

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°	4.28	5.01	5.61	6.01	6.21	6.30	6.32
60°	4.54	5.31	5.89	6.22	6.40	6.50	6.55
75°	4.74	5.57	6.10	6.38	6.57	6.71	6.90
90°	4.75	5.70	6.30	6.59	6.72	6.81	7.14
110°	4.86	5.87	6.42	6.73	7.01	7.27	7.54
120°	4.75	5.75	6.36	6.69	6.98	7.27	7.78
135°	4.38	5.29	6.08	6.49	6.78	7.08	7.68
150°	3.78	4.70	5.50	6.15	6.51	6.78	7.34