NATASSA — ORC Rating | RegattaPages

GPH

710.8

OSN

687.9

LOA

9.25 m

Displacement

4255 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5715

Medium

0.7806

High

0.8999

Triple Offshore

Low

0.7344

Medium

0.9556

High

1.064

Boat Specifications

Dimensions

Length overall: 9.25 m
Beam: 3.22 m
Draft: 1.81 m
Displacement: 4255 kg
Crew weight: 489 kg
Wetted surface: 21.45 m²

Sails

Mainsail: 21.43 m²
Genoa: 30.91 m²
Spinnaker: 63.89 m²
Asymmetric spinnaker: 65.18 m²

Design

Type: FEELING 920
Builder: KIRIE
Designer: PH. HARLE
Year built: 1983
Stability index: 105.5

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.

6,43.8,4.14265,52,4.58,60,4.83,75,4.98,90,4.89,110,4.98,120,4.81,135,4.36,144.8,3.928312,150,3.71
8,41.8,4.869372,52,5.43,60,5.67,75,5.83,90,5.87,110,5.98,120,5.84,135,5.39,149.3,4.745001,150,4.71
10,40.6,5.386744,52,5.97,60,6.15,75,6.29,90,6.41,110,6.52,120,6.45,135,6.16,150,5.56,152.3,5.443906
12,39.4,5.694071,52,6.26,60,6.41,75,6.55,90,6.69,110,6.84,120,6.81,135,6.6,150,6.2,159.5,5.850499
14,38.8,5.825457,52,6.42,60,6.57,75,6.74,90,6.84,110,7.1,120,7.11,135,6.92,150,6.59,173,6.085359
16,38.4,5.882402,52,6.48,60,6.65,75,6.88,90,6.97,110,7.33,120,7.38,135,7.22,150,6.89,178.1,6.463554
20,38.4,5.895162,52,6.53,60,6.72,75,7.02,90,7.25,110,7.66,120,7.91,135,7.82,150,7.45,179,7.031071

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.58	4.83	4.98	4.89	4.98	4.81	4.36	3.71
8	5.43	5.67	5.83	5.87	5.98	5.84	5.39	4.71
10	5.97	6.15	6.29	6.41	6.52	6.45	6.16	5.56
12	6.26	6.41	6.55	6.69	6.84	6.81	6.6	6.2
14	6.42	6.57	6.74	6.84	7.1	7.11	6.92	6.59
16	6.48	6.65	6.88	6.97	7.33	7.38	7.22	6.89
20	6.53	6.72	7.02	7.25	7.66	7.91	7.82	7.45

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.99	144.8°	3.21
8	41.8°	3.63	149.3°	4.08
10	40.6°	4.09	152.3°	4.82
12	39.4°	4.4	159.5°	5.48
14	38.8°	4.54	173°	6.04
16	38.4°	4.61	178.1°	6.46
20	38.4°	4.62	179°	7.03

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