SPINDRIFT: ORC Rating

GPH

682.8

OSN

662.3

LOA

10.49 m

Displacement

5150 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5995

Medium

0.8122

High

0.9307

Triple Offshore

Low

0.7709

Medium

0.9915

High

1.0997

Boat Specifications

Dimensions

Length overall: 10.49 m
Beam: 3.25 m
Draft: 1.79 m
Displacement: 5150 kg
Crew weight: 513 kg
Wetted surface: 24.33 m²

Sails

Mainsail: 31.95 m²
Genoa: 34.94 m²
Spinnaker: 68.09 m²
Asymmetric spinnaker: 0 m²

Design

Type: VAN DE STADT 34
Builder: HENRY VINK
Designer: VAN DE STADT
Year built: 1989
Stability index: 118.8

Performance data

Polar CSV

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

6,43.5,4.425301,52,4.92,60,5.18,75,5.36,90,5.27,110,5.15,120,4.98,135,4.48,146.2,3.959159,150,3.8
8,41.7,5.183233,52,5.77,60,6,75,6.15,90,6.11,110,6.16,120,6.01,135,5.5,150,4.84,150.7,4.816131
10,40.5,5.694327,52,6.28,60,6.45,75,6.58,90,6.62,110,6.71,120,6.63,135,6.28,150,5.7,154.7,5.497286
12,39.4,5.939952,52,6.53,60,6.69,75,6.83,90,6.9,110,7.04,120,6.98,135,6.75,150,6.36,161,5.964981
14,38.8,6.043591,52,6.66,60,6.82,75,7,90,7.07,110,7.31,120,7.27,135,7.08,150,6.77,174.5,6.258814
16,38.8,6.12058,52,6.72,60,6.89,75,7.13,90,7.25,110,7.56,120,7.56,135,7.37,150,7.08,179,6.661015
20,39.3,6.189908,52,6.77,60,6.96,75,7.27,90,7.54,110,7.94,120,8.18,135,8.05,150,7.66,179,7.251104

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.92	5.18	5.36	5.27	5.15	4.98	4.48	3.8
8	5.77	6	6.15	6.11	6.16	6.01	5.5	4.84
10	6.28	6.45	6.58	6.62	6.71	6.63	6.28	5.7
12	6.53	6.69	6.83	6.9	7.04	6.98	6.75	6.36
14	6.66	6.82	7	7.07	7.31	7.27	7.08	6.77
16	6.72	6.89	7.13	7.25	7.56	7.56	7.37	7.08
20	6.77	6.96	7.27	7.54	7.94	8.18	8.05	7.66

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.21	146.2°	3.29
8	41.7°	3.87	150.7°	4.2
10	40.5°	4.33	154.7°	4.97
12	39.4°	4.59	161°	5.64
14	38.8°	4.71	174.5°	6.23
16	38.8°	4.77	179°	6.66
20	39.3°	4.79	179°	7.25

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°	4.92	5.77	6.28	6.53	6.66	6.72	6.77
60°	5.18	6.00	6.45	6.69	6.82	6.89	6.96
75°	5.36	6.15	6.58	6.83	7.00	7.13	7.27
90°	5.27	6.11	6.62	6.90	7.07	7.25	7.54
110°	5.15	6.16	6.71	7.04	7.31	7.56	7.94
120°	4.98	6.01	6.63	6.98	7.27	7.56	8.18
135°	4.48	5.50	6.28	6.75	7.08	7.37	8.05
150°	3.80	4.84	5.70	6.36	6.77	7.08	7.66