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Abbreviations, Distances, Speeds |
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Abbreviations
| Nautical Mile |
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NM |
| Statute Mile |
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M |
| Miles per Hour |
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Mph |
| Knot |
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kt |
| Kilometre |
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km |
| Kilometre per Hour |
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kph |
| Metre |
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m |
| Day |
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D |
| Hour |
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h |
| Minute |
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min |
| Second |
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sec or s |
| Universal Time Coordinated |
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UTC |
| International Sailing Federation |
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ISAF |
| World Sailing Speed Record Council |
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WSSRC |
| Racing Rules of Sailing |
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RRS |
| Equipment Rules of Sailing |
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ERS |
| British Pounds |
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GBP |
| Global Positioning System |
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GPS |
| International Maritime Organisation |
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IMO |
| Maritime Safety Committee |
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MSC |
| Horizontal Position Error |
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hpe |
| World Geodetic System 84 |
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WGS 84 |
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 = 1.1507 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
35 sec = 27.77 kts = 14.28 m/s
30 sec = 32.40 kts = 16.67 m/s
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
On a Nautical Mile Course
100 sec = 36 kts
90 sec = 40 kts
80 sec = 45 kts
70 sec = 51.4 kts
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