Tjuvstart - NOR11271

Sailing performance analysis for a Hanse 312 from 2005, built by Hanse and designed by JUDELFRIEDRICH/VROELIJKROLF.

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9.45

Length (LOA)

meters

3.2

Beam

meters

1.72

Draft

meters

4,106

Displacement

kilograms

Total Sail Area

square meters

Data provided by the Offshore Racing Congress (ORC)

Sailing performance as a polar diagram

A polar diagram shows boat speed at different wind angles and wind speeds. The distance from center represents boat speed in knots, and the angle represents the boats angle to the wind. The wind speed is shown as true wind speed (TWS), not apparent wind speed. Likewise, the wind angle is shown as true wind angle (TWA), not apparent wind angle.

Beat: Sailing upwind (toward the wind)

Beam Reach: Sailing across the wind

Run: Sailing downwind (away from the wind)

Wind Speed

6kt

8kt

10kt

12kt

14kt

16kt

20kt

24kt

VMG Performance

Wind Speed (columns): True wind speed (TWS) in knots - the actual wind speed, not the apparent wind you feel on deck.

VMG (Velocity Made Good) is your effective speed toward your destination, not your actual boat speed.

Beat VMG (top bars): Speed made good when sailing upwind. Higher is better - it means you're reaching the windward mark faster.

Run VMG (bottom bars): Speed made good when sailing downwind. Higher is better - it means you're reaching the leeward mark faster.

6 kt

2.81

3.30

8 kt

3.45

4.18

10 kt

3.91

4.88

12 kt

4.28

5.37

14 kt

4.52

5.79

16 kt

4.62

6.29

20 kt

4.62

6.92

24 kt

4.47

7.43

⛵

Identity

NameTjuvstart

Sail #NOR11271

CountryNOR

BuilderHanse

DesignerJUDELFRIEDRICH/VROELIJKROLF

Build Year2,005

Series Year—

📏

Dimensions

LOA9.45m

Beam3.2m

Draft1.72m

Disp.4,106kg

WS20.79m²

Crew502kg

⛵

Sail Areas

Genoa16.08m²

Main26.5m²

Spinnaker0m²

A-Spin54.8m²

Total42.6m²

🏆

ORC Rating

GPH713.3

OSN691.4

Triple Offshore

Light

0.7268

Medium

0.9533

Heavy

1.0762

Triple Inshore

Light

0.5612

Medium

0.7644

Heavy

0.8896

📈

Rated boat speeds

Wind angle (TWA)

	Wind Speed (TWS)
	6 kt	8 kt	10 kt	12 kt	14 kt	16 kt	20 kt	24 kt
Beat VMG	2.81	3.45	3.91	4.28	4.52	4.62	4.62	4.47
52°	4.34	5.22	5.82	6.23	6.47	6.60	6.66	6.61
60°	4.60	5.48	6.06	6.42	6.64	6.79	6.89	6.87
75°	4.77	5.69	6.30	6.60	6.82	7.01	7.26	7.33
90°	5.10	6.07	6.62	6.93	7.14	7.25	7.46	7.73
110°	5.12	6.13	6.69	7.05	7.38	7.67	8.11	8.39
120°	4.95	5.98	6.59	6.98	7.33	7.67	8.33	8.94
135°	4.47	5.52	6.28	6.74	7.09	7.43	8.12	8.94
150°	3.81	4.82	5.64	6.20	6.57	6.85	7.37	7.91
Run VMG	3.30	4.18	4.88	5.37	5.79	6.29	6.92	7.43

Boat speed (knots) at wind angle / wind speed