ROCK AND ROLL — ORC Rating

GPH

721.8

OSN

697.4

LOA

10.112 m

Displacement

4306 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6131

Medium

0.8655

High

1.0257

Triple Offshore

Low

0.7959

Medium

1.0648

High

1.2149

Boat Specifications

Dimensions

Length overall: 10.112 m
Beam: 3.41 m
Draft: 1.76 m
Displacement: 4306 kg
Crew weight: 240 kg
Wetted surface: 22.18 m²

Sails

Mainsail: 27.54 m²
Genoa: 26.98 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: DEHLER 34
Builder: DEHLER
Designer: VAN DE STADT
Year built: 1989

Velocity Prediction

Polar CSV

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

6,43.2,4.183994,52,4.66,60,4.92,75,5.14,90,5.1,110,4.66,120,4.4,135,3.82,150,3.24,168.6,2.886956
8,41.7,4.915366,52,5.52,60,5.82,75,6.06,90,6.03,110,5.65,120,5.33,135,4.78,150,4.19,169.8,3.779736
10,41.7,5.558248,52,6.18,60,6.39,75,6.54,90,6.56,110,6.38,120,6.14,135,5.58,150,4.99,171.3,4.562497
12,40.7,5.948814,52,6.5,60,6.67,75,6.81,90,6.85,110,6.75,120,6.61,135,6.26,150,5.7,172.2,5.258654
14,39.7,6.10866,52,6.67,60,6.84,75,7.02,90,7.09,110,7.02,120,6.91,135,6.65,150,6.3,172.8,5.906575
16,39.4,6.172891,52,6.76,60,6.96,75,7.2,90,7.35,110,7.3,120,7.18,135,6.93,150,6.67,175.6,6.398859
20,40,6.213739,52,6.8,60,7.04,75,7.47,90,7.74,110,7.87,120,7.76,135,7.46,150,7.19,177.3,6.987757

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.66	4.92	5.14	5.1	4.66	4.4	3.82	3.24
8	5.52	5.82	6.06	6.03	5.65	5.33	4.78	4.19
10	6.18	6.39	6.54	6.56	6.38	6.14	5.58	4.99
12	6.5	6.67	6.81	6.85	6.75	6.61	6.26	5.7
14	6.67	6.84	7.02	7.09	7.02	6.91	6.65	6.3
16	6.76	6.96	7.2	7.35	7.3	7.18	6.93	6.67
20	6.8	7.04	7.47	7.74	7.87	7.76	7.46	7.19

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.05	168.6°	2.83
8	41.7°	3.67	169.8°	3.72
10	41.7°	4.15	171.3°	4.51
12	40.7°	4.51	172.2°	5.21
14	39.7°	4.7	172.8°	5.86
16	39.4°	4.77	175.6°	6.38
20	40°	4.76	177.3°	6.98

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