why do boats still use knots?

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From what I know the vast majority of nautical travel is measured in knots. It just feels a little ancient for this world of technology. Wether it’s a ship or amphibious craft the speed is always knots. We have pretty reliable GPS and satellite nav nowadays even to the point you can buy a GPS speedometer for less than $50 for your car. I completely understand the “if it ain’t broke don’t fix it” philosophy but surely it would make life just that little bit easier for sailors and captains to have their speed in MPH/KPH?

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60 Answers

Anonymous 0 Comments

The nautical mile is equal to one minute of latitude along any longitude or at the Equator. It is a derived measurement of distance.

Other forms of distance are based upon arbitrary length measurements.

Nautical miles is also used in aviation.

Anonymous 0 Comments

Knots are nautical miles per hour. Maritime and aviation navigation use nautical miles instead of statute miles.

Anonymous 0 Comments

The nautical mile is equal to one minute of latitude along any longitude or at the Equator. It is a derived measurement of distance.

Other forms of distance are based upon arbitrary length measurements.

Nautical miles is also used in aviation.

Anonymous 0 Comments

Knots are nautical miles per hour. Maritime and aviation navigation use nautical miles instead of statute miles.

Anonymous 0 Comments

Not that you asked, but aircraft typically measure speed in knots (or knots indicates airspeed (KIAS) or true airspeed (TAS)) as well. It’s equally applicable due to the massive distances covered by aircraft these days, where things like great circles are often utilized. That being said, we also use Statute Miles for things like meteorology…

Anonymous 0 Comments

Not that you asked, but aircraft typically measure speed in knots (or knots indicates airspeed (KIAS) or true airspeed (TAS)) as well. It’s equally applicable due to the massive distances covered by aircraft these days, where things like great circles are often utilized. That being said, we also use Statute Miles for things like meteorology…

Anonymous 0 Comments

Not that you asked, but aircraft typically measure speed in knots (or knots indicates airspeed (KIAS) or true airspeed (TAS)) as well. It’s equally applicable due to the massive distances covered by aircraft these days, where things like great circles are often utilized. That being said, we also use Statute Miles for things like meteorology…

Anonymous 0 Comments

IT’s just an alternate scale. What does GPS have to do with anything? Aircraft also use knots and GPS is an integral part of modern aircraft navigation, but it displays the speed in knots. Why would it make things any easier to be in a scale they don’t understand in the context as well? I don’t know why you think knots are more outdated than mph for example. How about the US stops using farenheit then we can talk.

Anonymous 0 Comments

FYI OP, most aircraft use knots as well. Some do use mph or kph though. Other people have answered your question well though.

Anonymous 0 Comments

IT’s just an alternate scale. What does GPS have to do with anything? Aircraft also use knots and GPS is an integral part of modern aircraft navigation, but it displays the speed in knots. Why would it make things any easier to be in a scale they don’t understand in the context as well? I don’t know why you think knots are more outdated than mph for example. How about the US stops using farenheit then we can talk.