Humming Bird — ORC Rating

GPH

697.7

OSN

676

LOA

9.255 m

Displacement

3046 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5808

Medium

0.7968

High

0.9175

Triple Offshore

Low

0.7489

Medium

0.9724

High

1.0869

Boat Specifications

Dimensions

Length overall: 9.255 m
Beam: 3.07 m
Draft: 1.75 m
Displacement: 3046 kg
Crew weight: 450 kg
Wetted surface: 17.93 m²

Sails

Mainsail: 25.89 m²
Genoa: 21.4 m²
Spinnaker: 47.22 m²
Asymmetric spinnaker: 0 m²

Design

Type: HB 31
Builder: Hunter Boats
Designer: v.d.Stadt & Prtnrs
Year built: 1983
Stability index: 108.7

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.

6,42.4,4.225035,52,4.74,60,5,75,5.18,90,5.09,110,5.04,120,4.86,135,4.35,146.9,3.807961,150,3.68
8,41.4,4.99926,52,5.62,60,5.87,75,6.03,90,6.06,110,6.07,120,5.9,135,5.33,150,4.67,152,4.586909
10,40.6,5.597472,52,6.15,60,6.3,75,6.42,90,6.53,110,6.56,120,6.47,135,6.15,150,5.54,153.8,5.37192
12,38.8,5.85112,52,6.4,60,6.54,75,6.67,90,6.83,110,6.9,120,6.81,135,6.57,150,6.22,161,5.838066
14,38.2,5.955283,52,6.52,60,6.69,75,6.88,90,7.02,110,7.26,120,7.17,135,6.9,150,6.59,175.7,6.127247
16,37.9,5.994291,52,6.57,60,6.76,75,7.05,90,7.19,110,7.6,120,7.54,135,7.26,150,6.91,179,6.50099
20,38.2,6.018908,52,6.61,60,6.82,75,7.23,90,7.59,110,8,120,8.23,135,8.02,150,7.6,179,7.121085

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.74	5	5.18	5.09	5.04	4.86	4.35	3.68
8	5.62	5.87	6.03	6.06	6.07	5.9	5.33	4.67
10	6.15	6.3	6.42	6.53	6.56	6.47	6.15	5.54
12	6.4	6.54	6.67	6.83	6.9	6.81	6.57	6.22
14	6.52	6.69	6.88	7.02	7.26	7.17	6.9	6.59
16	6.57	6.76	7.05	7.19	7.6	7.54	7.26	6.91
20	6.61	6.82	7.23	7.59	8	8.23	8.02	7.6

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.12	146.9°	3.19
8	41.4°	3.75	152°	4.05
10	40.6°	4.25	153.8°	4.82
12	38.8°	4.56	161°	5.52
14	38.2°	4.68	175.7°	6.11
16	37.9°	4.73	179°	6.5
20	38.2°	4.73	179°	7.12

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