       ## Abbreviations, Distances, Speeds

Abbreviations

 Nautical Mile NM Statute Mile M Miles per Hour Mph Knot kt Kilometre km Kilometre per Hour kph Metre m Day D Hour h Minute min Second sec or s Universal Time Coordinated UTC World Sailing WS World Sailing Speed Record Council WSSRC Racing Rules of Sailing RRS Equipment Rules of Sailing ERS British Pounds GBP Global Positioning System GPS International Maritime Organisation IMO Maritime Safety Committee MSC Horizontal Position Error hpe World Geodetic System 84 WGS 84 WSSR Black Box BB Yellow Box Tracker YB

The values below are listed for easy reference, and some are approximations. In the calculation of records, 1 nautical mile is exactly 1852 metres, and 1 knot is exactly 1852/3600 m/s

Distances
1 Nautical Mile = 1.852 km = 1.15069 Mile = 2025.2 Yards
500 Metres = 0.27 Nautical Mile = 0.31 Mile = 546.8 Yards

Speeds
1 Knot = 1 Nautical Mile per hour
1 kt = 1.852 kph = 1.1508 Mph = 0.51444... m/s
1 km/h = 0.5400 kt = 0.6214 Mph = 0.2777... m/s
1 Mph = 1.6093 km/h = 0.8690 kts = 0.4470 m/s

On a 500 m Speed Course
25 sec = 38.88 kts = 20.00 m/s
20 sec = 48.60 kts = 25.00 m/s
19 sec = 51.15 kts = 26.31 m/s
18 sec = 54.00 kts = 27.77 m/s
17 sec = 57.17 kts = 29.41 m/s
16 sec = 60.75 kts = 31.25 m/s
15 sec = 64.79 kts = 33.33 m/s

On a Nautical Mile Course
100 sec = 36 kts
90 sec = 40 kts
80 sec = 45 kts
70 sec = 51.4 kts
60 sec = 60 kts

Latitudes and Longitudes are given in degrees and minutes with 4 decimals Search WSSRC