Snorkfrøken - NOR13550

Sailing performance analysis for a Elan 31 Modified from 2002, built by Elan Marine and designed by RobHumphreys.

Compare with another boat

9.47

Length (LOA)

meters

3.3

Beam

meters

1.92

Draft

meters

4,517

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

3.30

3.27

8 kt

3.97

4.18

10 kt

4.43

4.96

12 kt

4.68

5.64

14 kt

4.79

6.23

16 kt

4.85

6.67

20 kt

4.90

7.26

24 kt

4.85

7.84

⛵

Identity

NameSnorkfrøken

Sail #NOR13550

CountryNOR

BuilderElan Marine

DesignerRobHumphreys

Build Year2,002

Series Year—

📏

Dimensions

LOA9.47m

Beam3.3m

Draft1.92m

Disp.4,517kg

WS21.58m²

Crew547kg

⛵

Sail Areas

Genoa26.74m²

Main31.03m²

Spinnaker58.1m²

Total57.8m²

🏆

ORC Rating

GPH676.9

OSN656.2

Triple Offshore

Light

0.7778

Medium

Heavy

1.1093

Triple Inshore

Light

0.606

Medium

0.8214

Heavy

0.9415

📈

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	3.30	3.97	4.43	4.68	4.79	4.85	4.90	4.85
52°	5.00	5.85	6.33	6.57	6.68	6.74	6.81	6.82
60°	5.24	6.06	6.49	6.72	6.85	6.92	7.00	7.03
75°	5.38	6.20	6.61	6.86	7.04	7.18	7.32	7.42
90°	5.27	6.15	6.66	6.93	7.12	7.32	7.62	7.79
110°	5.17	6.20	6.74	7.07	7.37	7.62	7.94	8.17
120°	4.98	6.04	6.65	7.01	7.32	7.62	8.19	8.58
135°	4.46	5.52	6.30	6.76	7.09	7.41	8.08	8.88
150°	3.77	4.83	5.71	6.37	6.78	7.09	7.70	8.39
Run VMG	3.27	4.18	4.96	5.64	6.23	6.67	7.26	7.84

Boat speed (knots) at wind angle / wind speed