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 Knots
 Notar520AC From United States of America, joined Jul 2001, 1606 posts, RR: 3Posted Fri Oct 5 2001 23:32:18 UTC (14 years 8 months 2 days 1 hour ago) and read 1164 times:

 Just a quick answer please- how many mph is a knot? Is there a conversion formula?
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 Apuneger From Belgium, joined Sep 2000, 3036 posts, RR: 10 Reply 1, posted Fri Oct 5 2001 23:47:57 UTC (14 years 8 months 2 days ago) and read 1124 times:

 A knot is defined as follows (if I remember well): If you travel one nautical mile per hour, your speed is exactly one knot. Therefor, one knot is one nautical mile per hour. I don't know how many statue miles that is, or how do you call that? However, I do know that it's about 1.5 kilometer, so one knot is more than one statue mile per hour. Ivan Plz correct me if I'm wrong
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 777236ER From , joined Dec 1969, posts, RR: Reply 2, posted Fri Oct 5 2001 23:49:49 UTC (14 years 8 months 2 days ago) and read 1119 times:

 Knot to MPH x1.1515 MPH to Knot x0.8684 Yeah, a knot is one nautical mile per hour
 777236ER From , joined Dec 1969, posts, RR: Reply 3, posted Sat Oct 6 2001 00:00:22 UTC (14 years 8 months 2 days ago) and read 1106 times:

 Oh my god, i just realised i know that by heart. That's it, i'm committing myself now.
 Notar520AC From United States of America, joined Jul 2001, 1606 posts, RR: 3 Reply 4, posted Sat Oct 6 2001 00:24:23 UTC (14 years 8 months 2 days ago) and read 1095 times:

 Gracias.
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 Jet-a gasguy From United States of America, joined Dec 2000, 266 posts, RR: 1 Reply 5, posted Sat Oct 6 2001 00:37:49 UTC (14 years 8 months 2 days ago) and read 1090 times:

 Notar520AC, hey buddy, how ya doin? Been flyin the NOTAR lately?   Jet-A gasguy
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 Timz From United States of America, joined Sep 1999, 7228 posts, RR: 7 Reply 6, posted Sat Oct 6 2001 05:17:45 UTC (14 years 8 months 1 day 19 hours ago) and read 1056 times:

 In the past there have been slightly-different definitions of the nautical mile, but it's now supposed to be 1852 meters exactly, while the statute mile is 1609.344 meters exactly.
 LAPA_SAAB340 From France, joined Aug 2001, 410 posts, RR: 4 Reply 7, posted Sat Oct 6 2001 13:04:04 UTC (14 years 8 months 1 day 11 hours ago) and read 1043 times:

 Notar, if you want to roughly convert knots to mph and don't feel like using a calculator, you can do this: Say your speed in knots is 160. Divide by ten (and get 16) and add it to your original to get 176mph. This gives you a rough estimate. If you want a more exact answer, you do a little more math, just divide that 16 by 2, and add it as well. So you have 160+16+8=184mph The same applies if you want to convert mph to knots, except instead of adding to your mph speed, you subtract.
 TAA_Airbus From Australia, joined Nov 1999, 726 posts, RR: 0 Reply 8, posted Sat Oct 6 2001 14:13:34 UTC (14 years 8 months 1 day 10 hours ago) and read 1037 times:

 For those of you that dont know, which seems to be everyone otherwise it would of been said already, the nautical mile was derived from 1 minute of longitude on the equator. Therefore 1' = 1nm However, as far as conversions go, As I am unaware of the international standard for the radius of the earth at the equator, I cant work out what 1nm is in kms or St.miles
 VirginFlyer From New Zealand, joined Sep 2000, 4652 posts, RR: 37 Reply 9, posted Sat Oct 6 2001 14:25:24 UTC (14 years 8 months 1 day 10 hours ago) and read 1035 times:

 Um, I have always found these good: Nautical->Statute (knot->mph): Divide by 8, multiply by 9 Statute->Nautical (mph->knot: Divide by 9, multiply by 8
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 Timz From United States of America, joined Sep 1999, 7228 posts, RR: 7 Reply 10, posted Sat Oct 6 2001 16:01:39 UTC (14 years 8 months 1 day 8 hours ago) and read 1023 times:

 The reason there have been various nautical miles in the past is the fact that the earth isn't spherical. WGS84 assumes the radius of the equator is 6378137 meters exactly, which makes a minute of longitude at the equator about 1855.325 meters. But a minute of latitude is 1842.905 meters at the equator and 1861.566 at the poles-- so presumably the now-official 1852-meter nautical mile is just a semi-arbitrary semi-average.
 Boeing nut From , joined Dec 1969, posts, RR: Reply 11, posted Sat Oct 6 2001 16:05:30 UTC (14 years 8 months 1 day 8 hours ago) and read 1020 times:

 One statue mile - 5,280 ft. One nautical mile - 6,000 ft.
 Johnnybgoode From Germany, joined Jan 2001, 2187 posts, RR: 6 Reply 12, posted Sat Oct 6 2001 19:09:45 UTC (14 years 8 months 1 day 5 hours ago) and read 1008 times:

 pretty simple: say you´ve got 200 knots, take 2 times and then minus 10%. so that´s 200x2=400 400-40=360 200kts= ~360mph rgds daniel
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