SANNA IV — ORC Rating

GPH

620.6

OSN

603.7

LOA

10.16 m

Displacement

4000 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6585

Medium

0.8914

High

1.0181

Triple Offshore

Low

0.852

Medium

1.0879

High

1.2136

Boat Specifications

Dimensions

Length overall: 10.16 m
Beam: 3.37 m
Draft: 2.12 m
Displacement: 4000 kg
Crew weight: 580 kg
Wetted surface: 22.62 m²

Sails

Mainsail: 38.24 m²
Genoa: 32.63 m²
Spinnaker: 75.47 m²
Asymmetric spinnaker: 0 m²

Design

Type: MANNERBERG 34
Builder: MATTI AALTIO
Designer: JUSSI MANNERBERG
Year built: 1999
Stability index: 124.5

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.

6,42.3,4.907852,52,5.49,60,5.78,75,6.02,90,5.94,110,5.69,120,5.5,135,4.92,137.8,4.75159,150,4.07
8,41.1,5.812384,52,6.46,60,6.66,75,6.8,90,6.8,110,6.79,120,6.64,135,6.08,149.6,5.170933,150,5.15
10,39,6.279387,52,6.91,60,7.05,75,7.18,90,7.22,110,7.31,120,7.21,135,6.9,149.3,6.210369,150,6.17
12,37.8,6.429118,52,7.08,60,7.25,75,7.45,90,7.52,110,7.74,120,7.66,135,7.35,150,6.93,158.3,6.597552
14,37.2,6.503208,52,7.16,60,7.35,75,7.67,90,7.84,110,8.18,120,8.15,135,7.79,150,7.35,172.7,6.784996
16,37.2,6.553426,52,7.21,60,7.42,75,7.8,90,8.14,110,8.47,120,8.66,135,8.29,150,7.76,179,7.181094
20,37.1,6.632531,52,7.28,60,7.48,75,7.94,90,8.52,110,8.93,120,9.48,135,9.5,150,8.73,177.2,7.979526

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.49	5.78	6.02	5.94	5.69	5.5	4.92	4.07
8	6.46	6.66	6.8	6.8	6.79	6.64	6.08	5.15
10	6.91	7.05	7.18	7.22	7.31	7.21	6.9	6.17
12	7.08	7.25	7.45	7.52	7.74	7.66	7.35	6.93
14	7.16	7.35	7.67	7.84	8.18	8.15	7.79	7.35
16	7.21	7.42	7.8	8.14	8.47	8.66	8.29	7.76
20	7.28	7.48	7.94	8.52	8.93	9.48	9.5	8.73

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.3°	3.63	137.8°	3.52
8	41.1°	4.38	149.6°	4.46
10	39°	4.88	149.3°	5.34
12	37.8°	5.08	158.3°	6.13
14	37.2°	5.18	172.7°	6.73
16	37.2°	5.22	179°	7.18
20	37.1°	5.29	177.2°	7.97

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