Joppe — ORC Rating | RegattaPages

GPH

638.9

OSN

623.4

LOA

9.3 m

Displacement

3139 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6287

Medium

0.8516

High

0.9757

Triple Offshore

Low

0.823

Medium

1.057

High

1.1931

Boat Specifications

Dimensions

Length overall: 9.3 m
Beam: 3.21 m
Draft: 1.99 m
Displacement: 3139 kg
Crew weight: 587 kg
Wetted surface: 20.59 m²

Sails

Mainsail: 32.01 m²
Genoa: 20.24 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 66.59 m²

Design

Type: Humphreys 30
Designer: Humphreys
Year built: 1999

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.

6,42.6,4.510275,52,5.08,60,5.43,75,5.91,90,6.09,110,5.82,120,5.48,135,4.82,144,4.338599,150,4.06
8,41.2,5.342797,52,6.02,60,6.4,75,6.73,90,6.87,110,6.74,120,6.53,135,5.95,147.5,5.240746,150,5.11
10,40.1,5.987543,52,6.6,60,6.8,75,7.11,90,7.29,110,7.19,120,7.07,135,6.74,148,6.143519,150,6.02
12,38.1,6.252105,52,6.88,60,7.05,75,7.36,90,7.71,110,7.69,120,7.54,135,7.17,150,6.65,150.2,6.637738
14,37.5,6.365386,52,7.02,60,7.23,75,7.54,90,8.06,110,8.22,120,8.11,135,7.64,150,7.02,175,6.273874
16,37.1,6.394311,52,7.08,60,7.32,75,7.76,90,8.3,110,8.76,120,8.74,135,8.19,150,7.34,178,6.764121
20,37.5,6.491433,52,7.14,60,7.39,75,7.99,90,8.65,110,9.79,120,10.01,135,9.59,150,8.27,178,7.464547

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.08	5.43	5.91	6.09	5.82	5.48	4.82	4.06
8	6.02	6.4	6.73	6.87	6.74	6.53	5.95	5.11
10	6.6	6.8	7.11	7.29	7.19	7.07	6.74	6.02
12	6.88	7.05	7.36	7.71	7.69	7.54	7.17	6.65
14	7.02	7.23	7.54	8.06	8.22	8.11	7.64	7.02
16	7.08	7.32	7.76	8.3	8.76	8.74	8.19	7.34
20	7.14	7.39	7.99	8.65	9.79	10.01	9.59	8.27

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.32	144°	3.51
8	41.2°	4.02	147.5°	4.42
10	40.1°	4.58	148°	5.21
12	38.1°	4.92	150.2°	5.76
14	37.5°	5.05	175°	6.25
16	37.1°	5.1	178°	6.76
20	37.5°	5.15	178°	7.46

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