what is the equivalent distance in nautical miles of one knot
Nautical mile The derived unit of speed is the knot, defined as one nautical mile per hour. The geographical mile is the length of one minute of longitude along the Equator, about 1,855Â m on the WGS 84 ellipsoid.
Strait of Gibraltar Europe and Africa are separated by 7.7 nautical miles (14.3 km; 8.9 mi) of ocean at the strait's narrowest point. The Strait's depth ranges between 300 and 900 metres (160 and 490 fathoms; 980 and 2,950 ft)[6] which possibly interacted with the lower mean sea level of the last major glaciation 20,000 years ago[7] when the level of the sea is believed to have been lower by 110–120 m (60–66 fathoms; 360–390 ft).[8] Ferries cross between the two continents every day in as little as 35 minutes. The Spanish side of the Strait is protected under El Estrecho Natural Park.