what is it when they say 20 knot ts what do they mean>?
2006-12-25 05:05:06 · 7 answers · asked by teasin1969lv 1 in Cars & Transportation ➔ Boats & Boating
1 knot = 1.1508 mph
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2006-12-25 05:12:15 · answer #1 · answered by MIKEWAAK 3 · 2⤊ 0⤋
A knot is longer then a mile, therefore if a boat is going 20 knots and a car is going 20 mph the boat is going faster. 1 knot is equal to 1.1508 mph.
2006-12-25 13:14:09 · answer #2 · answered by redhotboxsoxfan 6 · 0⤊ 0⤋
A statue mile, which is based upon the English measurement in feet is 5,280 feet, while a nautical mile is based upon the distance of one minute of arc in a degree measured on the circumference of the earth, or 6,076 feet. Nautical miles are used for navigation on the ocean and for flying. The difference is a nautical mile is approximately 15% further than a statue mile. When they say 20 knots, they mean the vessel is travelling at that speed or approximately 23 mph. Interesting that a hurricane is defined as a circular storm with a wind speed that exceeds 64 knots, or approximately 74 mph.
2006-12-25 18:22:50 · answer #3 · answered by Sailinlove 4 · 3⤊ 0⤋
The term knots dates back to the colonial days and the sailing ships of the time. Before mechanical speedometers gauged how fast boats were moving a sailor would take a length of rope and tie a knot in it every 3 feet or so (one arms length) then throw one end of the rope overboard. As the ship moved ahead the rope would be pulled off the deck. All the while the sailor would count the number of "knots" that went off the side in a minutes time. If 30 knots slipped into the water they calculated were going about that speed.
2006-12-25 13:14:49 · answer #4 · answered by sbcadillac 2 · 1⤊ 1⤋
Knots is nautical miles per hour. Nautical miles are equal to 1.15 statute miles per hour. Nautical miles are used on hte water because there is no road to measure on so they use latitude or angular degrees of the earths surface. A nautical mile is 1 minute which is 1/60th of a degree.(360 degrees all the way around the earth)
2006-12-25 21:39:40 · answer #5 · answered by science teacher 7 · 0⤊ 0⤋
20 knots would be real close to 23 mph on land.
2006-12-25 13:13:17 · answer #6 · answered by bungee 6 · 0⤊ 0⤋
Ditto on those answers involving arcs and degrees.
When speed is stated in a unit of measure that correlates to map and globe divisions, navigation becomes simpler.
2006-12-27 01:56:50 · answer #7 · answered by Caveman 3 · 0⤊ 0⤋