BOGAZICI UNIVERSITESI: ORC Rating

GPH

743.4

OSN

718.8

LOA

6.566 m

Displacement

835 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5355

Medium

0.7339

High

0.8575

Triple Offshore

Low

0.6915

Medium

0.9138

High

1.0658

Boat Specifications

Dimensions

Length overall: 6.566 m
Beam: 2.32 m
Draft: 1.67 m
Displacement: 835 kg
Crew weight: 320 kg
Wetted surface: 10.14 m²

Sails

Mainsail: 12.9 m²
Genoa: 8.35 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 23.98 m²

Design

Type: CHEESE 6.5
Builder: TBOATS
Designer: STEVE THOMPSON
Year built: 2007
Stability index: 103.4

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,42.3,3.758631,52,4.18,60,4.38,75,4.66,90,4.89,110,4.78,120,4.56,135,4.08,145.7,3.643634,150,3.48
8,40.8,4.517863,52,5.05,60,5.23,75,5.57,90,5.76,110,5.69,120,5.52,135,5.1,147.1,4.585408,150,4.44
10,39.7,5.068888,52,5.6,60,5.74,75,6.04,90,6.29,110,6.23,120,6.1,135,5.79,147.6,5.35337,150,5.22
12,38.1,5.362577,52,5.92,60,6.06,75,6.39,90,6.76,110,6.8,120,6.65,135,6.29,148.8,5.787008,150,5.72
14,36.4,5.52868,52,6.14,60,6.33,75,6.6,90,7.16,110,7.42,120,7.26,135,6.82,150,6.09,172.7,5.434046
16,35.8,5.609916,52,6.32,60,6.56,75,6.89,90,7.42,110,8.08,120,8.01,135,7.42,150,6.47,175.7,5.846457
20,36.4,5.665344,52,6.44,60,6.76,75,7.35,90,7.85,110,9.38,120,9.94,135,9.04,150,7.34,174.8,6.597151

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.18	4.38	4.66	4.89	4.78	4.56	4.08	3.48
8	5.05	5.23	5.57	5.76	5.69	5.52	5.1	4.44
10	5.6	5.74	6.04	6.29	6.23	6.1	5.79	5.22
12	5.92	6.06	6.39	6.76	6.8	6.65	6.29	5.72
14	6.14	6.33	6.6	7.16	7.42	7.26	6.82	6.09
16	6.32	6.56	6.89	7.42	8.08	8.01	7.42	6.47
20	6.44	6.76	7.35	7.85	9.38	9.94	9.04	7.34

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.3°	2.78	145.7°	3.01
8	40.8°	3.42	147.1°	3.85
10	39.7°	3.9	147.6°	4.52
12	38.1°	4.22	148.8°	4.95
14	36.4°	4.45	172.7°	5.39
16	35.8°	4.55	175.7°	5.83
20	36.4°	4.56	174.8°	6.57

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.18	5.05	5.60	5.92	6.14	6.32	6.44
60°	4.38	5.23	5.74	6.06	6.33	6.56	6.76
75°	4.66	5.57	6.04	6.39	6.60	6.89	7.35
90°	4.89	5.76	6.29	6.76	7.16	7.42	7.85
110°	4.78	5.69	6.23	6.80	7.42	8.08	9.38
120°	4.56	5.52	6.10	6.65	7.26	8.01	9.94
135°	4.08	5.10	5.79	6.29	6.82	7.42	9.04
150°	3.48	4.44	5.22	5.72	6.09	6.47	7.34