Magic - NOR13540

Sailing performance analysis for a King 40 from 2008, built by King Marine and designed by MarkMills.

Compare with another boat

12.123

Length (LOA)

meters

3.7

Beam

meters

2.51

Draft

meters

7,398

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

3.92

4.13

8 kt

4.75

5.21

10 kt

5.26

6.11

12 kt

5.50

6.69

14 kt

5.64

7.03

16 kt

5.73

7.51

20 kt

5.82

8.28

24 kt

5.77

9.70

⛵

Identity

NameMagic

Sail #NOR13540

CountryNOR

BuilderKing Marine

DesignerMarkMills

Build Year2,008

Series Year—

📏

Dimensions

LOA12.12m

Beam3.7m

Draft2.51m

Disp.7,398kg

WS32.94m²

Crew850kg

⛵

Sail Areas

Genoa41.21m²

Main54.6m²

Spinnaker0m²

A-Spin147.52m²

Total95.8m²

🏆

ORC Rating

GPH564.4

OSN548.8

Triple Offshore

Light

0.9482

Medium

1.1921

Heavy

1.3124

Triple Inshore

Light

0.7404

Medium

0.9753

Heavy

1.0924

📈

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	3.92	4.75	5.26	5.50	5.64	5.73	5.82	5.77
52°	5.94	6.98	7.49	7.73	7.84	7.92	8.02	8.04
60°	6.25	7.22	7.68	7.92	8.04	8.13	8.25	8.29
75°	6.47	7.37	7.81	8.10	8.30	8.45	8.65	8.76
90°	6.33	7.37	7.81	8.13	8.41	8.66	9.03	9.30
110°	6.43	7.54	8.08	8.46	8.70	8.94	9.36	9.70
120°	6.26	7.46	8.05	8.50	8.93	9.29	9.89	10.51
135°	5.64	6.97	7.76	8.25	8.73	9.24	10.56	12.38
150°	4.76	6.01	7.05	7.71	8.10	8.43	9.17	11.20
Run VMG	4.13	5.21	6.11	6.69	7.03	7.51	8.28	9.70

Boat speed (knots) at wind angle / wind speed