ELMER PRIMERO — ORC Rating

GPH

767.2

OSN

740.7

LOA

8.43 m

Displacement

2955 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5743

Medium

0.8054

High

0.9596

Triple Offshore

Low

0.7444

Medium

1.0034

High

1.1525

Boat Specifications

Dimensions

Length overall: 8.43 m
Beam: 3.02 m
Draft: 1.6 m
Displacement: 2955 kg
Crew weight: 500 kg
Wetted surface: 18.07 m²

Sails

Mainsail: 19.36 m²
Genoa: 15.43 m²
Spinnaker: 45.43 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 285 Q.B.
Builder: Beneteau
Designer: Finot
Year built: 1986

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.

6,44,3.503212,52,3.89,60,4.14,75,4.34,90,4.6,110,4.69,120,4.55,135,4.09,148.2,3.576922,150,3.51
8,42.5,4.204659,52,4.7,60,4.96,75,5.23,90,5.62,110,5.71,120,5.56,135,5.06,150,4.47,152,4.383046
10,42.1,4.757567,52,5.34,60,5.63,75,5.9,90,6.25,110,6.3,120,6.23,135,5.9,150,5.29,153.8,5.126728
12,42.3,5.272899,52,5.85,60,6.06,75,6.23,90,6.54,110,6.65,120,6.57,135,6.36,150,5.99,160.2,5.611763
14,41,5.565055,52,6.12,60,6.3,75,6.44,90,6.72,110,6.98,120,6.89,135,6.67,150,6.38,180,5.89
16,40.5,5.681176,52,6.25,60,6.43,75,6.63,90,6.81,110,7.29,120,7.25,135,7,150,6.67,180,6.3
20,41.3,5.670442,52,6.27,60,6.5,75,6.89,90,7.13,110,7.67,120,7.91,135,7.71,150,7.31,180,6.87

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.89	4.14	4.34	4.6	4.69	4.55	4.09	3.51
8	4.7	4.96	5.23	5.62	5.71	5.56	5.06	4.47
10	5.34	5.63	5.9	6.25	6.3	6.23	5.9	5.29
12	5.85	6.06	6.23	6.54	6.65	6.57	6.36	5.99
14	6.12	6.3	6.44	6.72	6.98	6.89	6.67	6.38
16	6.25	6.43	6.63	6.81	7.29	7.25	7	6.67
20	6.27	6.5	6.89	7.13	7.67	7.91	7.71	7.31

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44°	2.52	148.2°	3.04
8	42.5°	3.1	152°	3.87
10	42.1°	3.53	153.8°	4.6
12	42.3°	3.9	160.2°	5.28
14	41°	4.2	180°	5.89
16	40.5°	4.32	180°	6.3
20	41.3°	4.26	180°	6.87

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