Betty Boop — ORC Rating

GPH

680.8

OSN

659.1

LOA

9.98 m

Displacement

3441 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5915

Medium

0.8124

High

0.943

Triple Offshore

Low

0.7613

Medium

0.9986

High

1.1257

Boat Specifications

Dimensions

Length overall: 9.98 m
Beam: 3.31 m
Draft: 1.92 m
Displacement: 3441 kg
Crew weight: 400 kg
Wetted surface: 20.18 m²

Sails

Mainsail: 21.1 m²
Genoa: 26.12 m²
Spinnaker: 65.4 m²
Asymmetric spinnaker: 0 m²

Design

Type: Elan 33 mod keel
Builder: Elan Marine
Designer: Rob Humphreys
Year built: 1985

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.

6,42.8,4.184101,52,4.69,60,4.95,75,5.15,90,5.08,110,5.17,120,5.03,135,4.58,147,4.018264,150,3.89
8,41.2,4.93079,52,5.57,60,5.86,75,6.08,90,6.12,110,6.28,120,6.15,135,5.66,150,4.907477
10,41.1,5.573519,52,6.2,60,6.41,75,6.57,90,6.7,110,6.84,120,6.78,135,6.49,150,5.83,151,5.773938
12,39.8,5.948325,52,6.54,60,6.7,75,6.85,90,7,110,7.22,120,7.18,135,6.94,150,6.53,158,6.190789
14,39,6.124976,52,6.72,60,6.89,75,7.08,90,7.15,110,7.57,120,7.57,135,7.32,150,6.93,180,6.34
16,39,6.202181,52,6.8,60,7.01,75,7.28,90,7.39,110,7.83,120,7.94,135,7.72,150,7.28,180,6.79
20,39.6,6.216636,52,6.83,60,7.08,75,7.52,90,7.81,110,8.16,120,8.52,135,8.53,150,8.02,180,7.47

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.69	4.95	5.15	5.08	5.17	5.03	4.58	3.89
8	5.57	5.86	6.08	6.12	6.28	6.15	5.66	4.91
10	6.2	6.41	6.57	6.7	6.84	6.78	6.49	5.83
12	6.54	6.7	6.85	7	7.22	7.18	6.94	6.53
14	6.72	6.89	7.08	7.15	7.57	7.57	7.32	6.93
16	6.8	7.01	7.28	7.39	7.83	7.94	7.72	7.28
20	6.83	7.08	7.52	7.81	8.16	8.52	8.53	8.02

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.07	147°	3.37
8	41.2°	3.71	150°	4.25
10	41.1°	4.2	151°	5.05
12	39.8°	4.57	158°	5.74
14	39°	4.76	180°	6.34
16	39°	4.82	180°	6.79
20	39.6°	4.79	180°	7.47

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