ROCKET POWER — ORC Rating

GPH

672.5

OSN

652.7

LOA

8.4 m

Displacement

2197 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6915

Medium

0.9306

High

1.0571

Triple Offshore

Low

0.885

Medium

1.1289

High

1.261

Boat Specifications

Dimensions

Length overall: 8.4 m
Beam: 2.74 m
Draft: 1.96 m
Displacement: 2197 kg
Crew weight: 370 kg
Wetted surface: 16.29 m²

Sails

Mainsail: 20.65 m²
Genoa: 18.47 m²
Spinnaker: 54.77 m²
Asymmetric spinnaker: 0 m²

Design

Type: ROCKET 28
Builder: CAMARGO ARANHA
Designer: J.MEDEIROS ARANHA
Year built: 1993

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.

6,41.6,4.33272,52,4.88,60,5.13,75,5.31,90,5.28,110,5.35,120,5.19,135,4.69,145.7,4.188364,150,3.99
8,40.1,5.098563,52,5.75,60,5.96,75,6.12,90,6.22,110,6.31,120,6.21,135,5.78,149.3,5.059009,150,5.02
10,38.8,5.645818,52,6.24,60,6.38,75,6.49,90,6.62,110,6.77,120,6.7,135,6.44,150,5.91,152.6,5.789492
12,37.3,5.845575,52,6.46,60,6.61,75,6.77,90,6.81,110,7.19,120,7.15,135,6.86,150,6.47,162.3,6.056716
14,37.2,5.938258,52,6.55,60,6.74,75,7.01,90,7.1,110,7.48,120,7.64,135,7.32,150,6.86,180,6.33
16,37.2,5.963367,52,6.59,60,6.8,75,7.18,90,7.41,110,7.72,120,8.07,135,7.84,150,7.28,180,6.72
20,37.2,6.051248,52,6.67,60,6.86,75,7.3,90,7.85,110,8.14,120,8.65,135,9.18,150,8.27,180,7.53

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.88	5.13	5.31	5.28	5.35	5.19	4.69	3.99
8	5.75	5.96	6.12	6.22	6.31	6.21	5.78	5.02
10	6.24	6.38	6.49	6.62	6.77	6.7	6.44	5.91
12	6.46	6.61	6.77	6.81	7.19	7.15	6.86	6.47
14	6.55	6.74	7.01	7.1	7.48	7.64	7.32	6.86
16	6.59	6.8	7.18	7.41	7.72	8.07	7.84	7.28
20	6.67	6.86	7.3	7.85	8.14	8.65	9.18	8.27

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.6°	3.24	145.7°	3.46
8	40.1°	3.9	149.3°	4.35
10	38.8°	4.4	152.6°	5.14
12	37.3°	4.65	162.3°	5.77
14	37.2°	4.73	180°	6.33
16	37.2°	4.75	180°	6.72
20	37.2°	4.82	180°	7.53

Loading polar chart…