JULECHKA — ORC Rating

GPH

766.5

OSN

748.9

LOA

8.55 m

Displacement

2340 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.552

Medium

0.7139

High

0.7943

Triple Offshore

Low

0.7055

Medium

0.8749

High

0.9475

Boat Specifications

Dimensions

Length overall: 8.55 m
Beam: 2.01 m
Draft: 1.23 m
Displacement: 2340 kg
Crew weight: 180 kg
Wetted surface: 13.75 m²

Sails

Mainsail: 17.78 m²
Genoa: 19.71 m²
Spinnaker: 44.36 m²
Asymmetric spinnaker: 0 m²

Design

Type: RJ 85
Builder: Jakobssen
Year built: 1969
Stability index: 145.3

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.

6,42.6,4.007624,52,4.45,60,4.67,75,4.82,90,4.76,110,4.79,120,4.64,135,4.14,147.8,3.651648,150,3.57
8,41.1,4.578248,52,5.13,60,5.33,75,5.49,90,5.47,110,5.63,120,5.56,135,5.12,150,4.51,152.3,4.416115
10,41.1,4.883464,52,5.45,60,5.66,75,5.83,90,5.88,110,6.05,120,6.04,135,5.84,150,5.33,154.1,5.146973
12,41.1,5.029438,52,5.58,60,5.78,75,6.01,90,6.11,110,6.3,120,6.35,135,6.21,150,5.91,162.8,5.537653
14,41.2,5.103567,52,5.65,60,5.85,75,6.09,90,6.26,110,6.44,120,6.58,135,6.53,150,6.25,177.2,5.796921
16,41.4,5.159236,52,5.69,60,5.9,75,6.16,90,6.36,110,6.55,120,6.77,135,6.82,150,6.55,179,6.150937
20,42.6,5.216703,52,5.71,60,5.93,75,6.22,90,6.5,110,6.75,120,7.03,135,7.42,150,7.16,179,6.721024

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.45	4.67	4.82	4.76	4.79	4.64	4.14	3.57
8	5.13	5.33	5.49	5.47	5.63	5.56	5.12	4.51
10	5.45	5.66	5.83	5.88	6.05	6.04	5.84	5.33
12	5.58	5.78	6.01	6.11	6.3	6.35	6.21	5.91
14	5.65	5.85	6.09	6.26	6.44	6.58	6.53	6.25
16	5.69	5.9	6.16	6.36	6.55	6.77	6.82	6.55
20	5.71	5.93	6.22	6.5	6.75	7.03	7.42	7.16

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	2.95	147.8°	3.09
8	41.1°	3.45	152.3°	3.91
10	41.1°	3.68	154.1°	4.63
12	41.1°	3.79	162.8°	5.29
14	41.2°	3.84	177.2°	5.79
16	41.4°	3.87	179°	6.15
20	42.6°	3.84	179°	6.72

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