Schock Therapy: ORC Rating

GPH

523

OSN

505.3

LOA

12.198 m

Displacement

3666 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.774

Medium

1.0475

High

1.2314

Triple Offshore

Low

0.9943

Medium

1.2935

High

1.5046

Boat Specifications

Dimensions

Length overall: 12.198 m
Beam: 3.04 m
Draft: 2.51 m
Displacement: 3666 kg
Crew weight: 797 kg
Wetted surface: 25.64 m²

Sails

Mainsail: 46.46 m²
Genoa: 28.92 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 120.9 m²

Design

Type: Schock 40
Builder: W D Schock Corp
Designer: Dyna Yachts
Year built: 2000
Stability index: -1

Performance data

Polar CSV

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

4,42.6,3.994038,52,4.54,60,4.92,75,5.19,90,4.92,110,4.93,120,4.75,135,4.08,141.5,3.769447,150,3.4
6,42.6,5.569917,52,6.22,60,6.57,75,6.8,90,6.63,110,6.69,120,6.53,135,5.88,141.5,5.430559,150,4.91
8,41.3,6.722003,52,7.44,60,7.67,75,7.79,90,7.77,110,7.98,120,7.89,135,7.38,144.2,6.682581,150,6.26
10,38,7.220714,52,8.01,60,8.23,75,8.39,90,8.32,110,8.85,120,8.81,135,8.26,148.9,7.462625,150,7.38
12,36.4,7.429552,52,8.29,60,8.59,75,8.9,90,8.98,110,9.45,120,9.73,135,9.12,150,8.19,152.5,8.026959
14,35.6,7.55134,52,8.49,60,8.82,75,9.22,90,9.6,110,9.99,120,10.5,135,10.16,150,8.93,150.5,8.892916
16,35.1,7.639189,52,8.64,60,9,75,9.48,90,10.09,110,10.52,120,11.18,135,11.45,147.5,10.054643,150,9.79
20,34.5,7.753667,52,8.87,60,9.27,75,9.88,90,10.79,110,11.53,120,12.5,135,14.01,141.1,13.864562,150,12.47
24,34.9,7.803433,52,8.98,60,9.44,75,10.09,90,11.29,110,12.81,120,13.85,135,16.21,146.5,16.800861,150,16.18

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
4	4.54	4.92	5.19	4.92	4.93	4.75	4.08	3.4
6	6.22	6.57	6.8	6.63	6.69	6.53	5.88	4.91
8	7.44	7.67	7.79	7.77	7.98	7.89	7.38	6.26
10	8.01	8.23	8.39	8.32	8.85	8.81	8.26	7.38
12	8.29	8.59	8.9	8.98	9.45	9.73	9.12	8.19
14	8.49	8.82	9.22	9.6	9.99	10.5	10.16	8.93
16	8.64	9	9.48	10.09	10.52	11.18	11.45	9.79
20	8.87	9.27	9.88	10.79	11.53	12.5	14.01	12.47
24	8.98	9.44	10.09	11.29	12.81	13.85	16.21	16.18

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
4	42.6°	2.94	141.5°	2.95
6	42.6°	4.1	141.5°	4.25
8	41.3°	5.05	144.2°	5.42
10	38°	5.69	148.9°	6.39
12	36.4°	5.98	152.5°	7.12
14	35.6°	6.14	150.5°	7.74
16	35.1°	6.25	147.5°	8.48
20	34.5°	6.39	141.1°	10.79
24	34.9°	6.4	146.5°	14.01

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 4 kt6 kt8 kt10 kt12 kt14 kt16 kt20 kt24 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 4 kt (kt)	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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.54	6.22	7.44	8.01	8.29	8.49	8.64	8.87	8.98
60°	4.92	6.57	7.67	8.23	8.59	8.82	9.00	9.27	9.44
75°	5.19	6.80	7.79	8.39	8.90	9.22	9.48	9.88	10.09
90°	4.92	6.63	7.77	8.32	8.98	9.60	10.09	10.79	11.29
110°	4.93	6.69	7.98	8.85	9.45	9.99	10.52	11.53	12.81
120°	4.75	6.53	7.89	8.81	9.73	10.50	11.18	12.50	13.85
135°	4.08	5.88	7.38	8.26	9.12	10.16	11.45	14.01	16.21
150°	3.40	4.91	6.26	7.38	8.19	8.93	9.79	12.47	16.18