Joppe — ORC Rating | RegattaPages

GPH

634.3

OSN

617.3

LOA

9.3 m

Displacement

3111 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7267

Medium

0.9727

High

1.1026

Triple Offshore

Low

0.9364

Medium

1.1971

High

1.3411

Boat Specifications

Dimensions

Length overall: 9.3 m
Beam: 3.21 m
Draft: 1.99 m
Displacement: 3111 kg
Crew weight: 587 kg
Wetted surface: 20.55 m²

Sails

Mainsail: 33.09 m²
Genoa: 25.69 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.

6,41.9,4.702332,52,5.27,60,5.53,75,5.74,90,5.67,110,5.64,120,5.44,135,4.83,144.1,4.357801,150,4.07
8,40.8,5.561463,52,6.24,60,6.46,75,6.59,90,6.69,110,6.69,120,6.53,135,5.96,147.8,5.247029,150,5.13
10,39.1,6.133654,52,6.74,60,6.88,75,6.99,90,7.16,110,7.19,120,7.07,135,6.74,148.1,6.160394,150,6.04
12,37.6,6.310823,52,6.95,60,7.12,75,7.31,90,7.5,110,7.7,120,7.54,135,7.18,150,6.67,150.4,6.647537
14,37,6.373371,52,7.04,60,7.26,75,7.59,90,7.74,110,8.23,120,8.12,135,7.65,150,7.03,175.3,6.301188
16,36.9,6.415029,52,7.09,60,7.33,75,7.79,90,8.1,110,8.7,120,8.75,135,8.2,150,7.36,177.7,6.785466
20,37.2,6.478099,52,7.13,60,7.39,75,7.97,90,8.62,110,9.35,120,10.03,135,9.61,150,8.28,177.7,7.496039

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.27	5.53	5.74	5.67	5.64	5.44	4.83	4.07
8	6.24	6.46	6.59	6.69	6.69	6.53	5.96	5.13
10	6.74	6.88	6.99	7.16	7.19	7.07	6.74	6.04
12	6.95	7.12	7.31	7.5	7.7	7.54	7.18	6.67
14	7.04	7.26	7.59	7.74	8.23	8.12	7.65	7.03
16	7.09	7.33	7.79	8.1	8.7	8.75	8.2	7.36
20	7.13	7.39	7.97	8.62	9.35	10.03	9.61	8.28

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.9°	3.5	144.1°	3.53
8	40.8°	4.21	147.8°	4.44
10	39.1°	4.76	148.1°	5.23
12	37.6°	5	150.4°	5.78
14	37°	5.09	175.3°	6.28
16	36.9°	5.13	177.7°	6.78
20	37.2°	5.16	177.7°	7.49

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