Is 21 knots fast for a ship?

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 ships are powered by diesel electric engines or gas turbines, and they have propellers that cut through the water to move them forward or backward.
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How many knots is considered fast?

For those built for speed, the answer is about 30+ knots. For larger ships however, it's around 21 to 24 knots, which is still rapid travel while on the water. One knot is one nautical mile per hour, or 6,076 feet per hour. Compare that to one mile per hour on land, which is 5280 feet per hour.
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Is 22 knots fast for a ship?

Most cruise ships can cruise at a speed around 21 to 23 knots, or 24 to 26 mph.
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How fast is 21 knots on a cruise ship?

One knot is the same as 1.15 statute miles. So, if a cruise ship is sailing at a speed of 21 knots, you might compare that to roughly 24 mph.
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How fast is 21 knots on the water?

So 21 knots is about 24 miles an hour – and 30 knots is about 34 miles per hour). With large vessels apparently it doesn't matter if the boat is on or under the water – the fastest submarines don't go much above 40 knots – so that's still slower than cars on the motorway.
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You won't BELIEVE why ship's speed is measured in knots!!



How fast are Navy ships?

Top Speed: 63 knots [72 mph or 117 kmph] Sustained Speed: 40 knots [46 mph or 74 kmph] Displacement:240 ton. Range: 500 nautical miles | 575.4 miles | 926 km at 40 knots.
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How many knots can a cruise ship go?

The average speed of a modern cruise ship is roughly 20 knots (23 miles per hour), with maximum speeds reaching about 30 knots (34.5 miles per hour).
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How fast do yachts go in knots?

Larger racing yachts can easily reach speeds up to 15 knots (17 mph or 28 km/h), with an average cruising speed between 6-8 knots (7-9 mph). Cruising speeds of over 8 knots are uncommon. Different types of sailboats reach very different speeds.
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How fast could the Titanic go?

7. The top speed of the Titanic was 23 knots (more than 26 miles per hour).
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Do cruise ships go slow?

Not only do cruise ships rarely travel at their fastest speed, but they often go much slower. There can be many reasons why a cruise ship slows down, and it's not just to save fuel. Certainly fuel consumption can play a major role in determining what speed to travel at, but other conditions can dictate a slower speed.
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What is a good cruising speed for a boat?

Most mechanics and engineers suggest the best cruising speeds are achieved at 3400 and 3800 rpm respectively.
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How fast can a medieval ship travel?

Vessels could not reach their maximum speed until they met the waters south of Rhodes. When we combine all the above evidence we find that under favorable wind conditions, ancient vessels averaged between 4 and 6 knots over open water, and 3 to 4 knots while working through islands or along coasts.
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How fast is a yacht?

How Fast Are Yachts? Yachts differ in speeds depending on the type of boat, with mega-yachts and ocean sport boats being the fastest (at over 30 MPH), cruisers, and deck boats falling second (at an average speed of 23 MPH), then pontoons, and sailboats averaging 10 MPH.
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How fast is fast on the water?

Drag scales with velocity squared, and power scales with force times velocity, so power in response to a drag force scales with velocity cubed. To run on water you would have to be able to run 3 times as fast as Usain Bolt can on dry land, or about 30 m/s. 30 m/s is about 70 mph.
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How fast does a 300 hp boat go?

When equipped with 250-hp or 300-hp outboards, these types of aluminum fishing boats can typically have a WOT of 55 mph to 60 mph, or a bit more with two people aboard.
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How fast is a cargo ship?

Most containerships are designed to travel at speeds around 24 knots. Slow steaming (18-20 knots; 33.3 – 37.0 km/hr). Running ship engines below capacity to save fuel consumption but at the expense of an additional travel time, particularly over long distances (compounding effect).
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How fast does a pirate ship go?

With an average distance of approximately 3,000 miles, this equates to a range of about 100 to 140 miles per day, or an average speed over the ground of about 4 to 6 knots.
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How fast does a large ship travel?

Ship speed is measured in knots. One knot is equivalent to one nautical mile per hour, which is 1.852 km/h to be precise. The larger passenger cruise ships will travel around 21 to 24 knots, which is 38.9 to 44.4 km/h.
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What is the fastest US ship?

USS Detroit specifications
  • Class and type: Littoral combat ship (LCS), Freedom variant.
  • Full load and displacement: 3,400 metric tons.
  • Length: 389 feet.
  • Beam (width): 57 feet.
  • Draft (depth): 13.5 feet.
  • Speed: 45 knots (52 mph)
  • Propulsion: Combined diesel and gas turbine with steerable water jet propulsion.
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How fast do submarines go?

How Fast Can a Submarine Go? This is classified as well. However, U.S. nuclear-powered submarines can go faster than 23 miles per hour, which is 37 kilometers per hour or 20 knots (nautical miles per hour) underwater.
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Are 22 knots windy?

19-24 Mph 29-38 kph 17-21 knots Fresh Breeze Small trees sway. White crested wavelets (whitecaps) form, some spray. 25-31 Mph 39-49 kph 22-27 knots Strong Breeze Large tree branches move, telephone wires begin to "whistle", umbrellas are difficult to keep under control. Larger waves form, whitecaps prevalent, spray.
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