Tuimelaar — ORC Rating

GPH

838

OSN

810.5

LOA

7.68 m

Displacement

1968 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.4786

Medium

0.6588

High

0.7628

Triple Offshore

Low

0.6186

Medium

0.8121

High

0.9123

Boat Specifications

Dimensions

Length overall: 7.68 m
Beam: 2.21 m
Draft: 1.12 m
Displacement: 1968 kg
Crew weight: 270 kg
Wetted surface: 14.58 m²

Sails

Mainsail: 18.39 m²
Genoa: 7.31 m²
Spinnaker: 25.67 m²
Asymmetric spinnaker: 0 m²

Design

Type: NORDIC FOLKBOAT
Builder: Folkebadscentralen
Designer: Sunden Tord
Year built: 1941
Stability index: 141.3

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.

6,44.2,3.403493,52,3.75,60,3.95,75,4.14,90,4.39,110,4.34,120,4.14,135,3.67,150,3.17,150.2,3.169059
8,42.4,4.021909,52,4.48,60,4.68,75,4.94,90,5.19,110,5.17,120,5.02,135,4.54,150,4.05,155.9,3.867077
10,41.4,4.439343,52,4.95,60,5.15,75,5.4,90,5.65,110,5.66,120,5.56,135,5.27,150,4.8,162.2,4.421668
12,40.8,4.742435,52,5.26,60,5.44,75,5.64,90,5.91,110,5.96,120,5.89,135,5.69,150,5.38,171.8,4.920304
14,40.8,4.927377,52,5.44,60,5.62,75,5.8,90,6.09,110,6.23,120,6.17,135,5.98,150,5.74,178.1,5.362948
16,40.8,5.006638,52,5.54,60,5.73,75,5.95,90,6.2,110,6.47,120,6.44,135,6.25,150,6.01,179,5.71087
20,41.8,5.110829,52,5.61,60,5.83,75,6.13,90,6.35,110,6.87,120,6.95,135,6.81,150,6.53,179,6.220947

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.75	3.95	4.14	4.39	4.34	4.14	3.67	3.17
8	4.48	4.68	4.94	5.19	5.17	5.02	4.54	4.05
10	4.95	5.15	5.4	5.65	5.66	5.56	5.27	4.8
12	5.26	5.44	5.64	5.91	5.96	5.89	5.69	5.38
14	5.44	5.62	5.8	6.09	6.23	6.17	5.98	5.74
16	5.54	5.73	5.95	6.2	6.47	6.44	6.25	6.01
20	5.61	5.83	6.13	6.35	6.87	6.95	6.81	6.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.44	150.2°	2.75
8	42.4°	2.97	155.9°	3.53
10	41.4°	3.33	162.2°	4.21
12	40.8°	3.59	171.8°	4.87
14	40.8°	3.73	178.1°	5.36
16	40.8°	3.79	179°	5.71
20	41.8°	3.81	179°	6.22

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