en.wikipedia.org/wiki/Knot_(unit)

The knot is a unit of speed equal to one nautical mile (1.852 km) per hour,
approximately 1.151 mph. The ISO Standard symbol for the knot is kn. The same
...

www.ask.com/youtube?q=How Fast Is 21 Knots?&v=9_W8K952p2U

Jul 26, 2010 ... Titanic night ride with 21 knots of speed, meets cargo ship and beets cargo ship :)

www.readyforanythingnow.com/Explanation/knots to miles conversion chart.htm

15 Knots = 17.26 MPH 16 Knots = 18.41 MPH 17 Knots = 19.56 MPH 18 Knots =
20.71 MPH 19 Knots = 21.86 MPH 20 Knots = 23.02 MPH 21 Knots = 24.17 ...

www.disastercenter.com/convert.htm

Knots ... Speed, Descriptive term, Sea, Land. Average, Range, American, British,
State, Description, Wave ... 34 km/h, 17-21 kts 19-24 mph 29-38 km/h, Fresh ...

www.cruisemapper.com/wiki/762-fastest-cruise-ship-speed

Nov 26, 2015 ... The speed of cruise ships is measured in knots (kn), 1 knot is 1 nautical ...
Celebrity, 70,600 - 122,000, 21,5 - 24, 25 - 28, 40 - 45, MS Xpedition ...

www.grc.nasa.gov/www/k-12/WindTunnel/Activities/knots_vs_mph.html

Knots is how the speed of aircraft and boats is measured. Both miles per hour
and knots is a speed which is the number of units of distance that is covered for a
...

www.metric-conversions.org/speed/knots-to-miles-per-hour.htm

Knots to Miles per hour (knots to mph) conversion calculator for Speed
conversions with ... Bookmark Page mph to Knots (Swap Units) ... 21 knots, 24.17
mph.

www.metric-conversions.org/speed/knots-to-kilometers-per-hour.htm

Knots to Kilometers per hour (knots to kph) conversion calculator for Speed
conversions with ... Bookmark Page kph to Knots (Swap Units) ... 21 knots, 38.89
kph.

www.travelinsurancereview.net/2010/02/03/how-fast-does-a-cruise-ship-travel/

Feb 3, 2010 ... Ordinary cruise ships travel at the speed of 21 to 24 knots per hour, but a high-
speed cruise ship can go as fast as 30 knots or more. Most cruise ...

cruises.lovetoknow.com/wiki/How_Fast_Does_a_Cruise_Ship_Travel

For larger ships however, it's around 21 to 24 knots, which is still rapid travel
while ... Therefore, the average cruise ship speed is equal to approximately 24 to
27 ...