Judging boat speed can be done in several ways depending on the context and the tools available. Here are some common methods:
Using a Speedometer or GPS: Modern boats often have electronic speedometers or GPS devices that provide accurate speed readings in knots, miles per hour, or kilometers per hour.
Using a Log (Mechanical or Electronic): A "log" is a device that measures the distance traveled through the water, which can be used to calculate speed. Mechanical logs use a rotating rotor in the water, while electronic logs use sonar.
Estimating by Time and Distance: If you know the distance between two fixed points (like buoys or landmarks), you can measure the time it takes to travel between them and calculate speed using the formula:
Observing Wake and Water Conditions: Experienced sailors can estimate speed by observing the size and shape of the boat’s wake, the sound of the engine, or how the boat handles in the water.
Using a Hand Log or Chip Log: Historically, sailors used a chip log—a wooden board attached to a line with knots tied at regular intervals. By counting how many knots passed over a set time, they estimated speed in knots.
If you want a quick formula for speed based on distance and time: Speed= distance/time
where distance is in nautical miles and time is in hours, speed will be in knots.
Would you like details.
It was held over the side of a boat to judge speed of the boat while moving on water. The water would force the bubble up the tube showing the speed the boat was traveling. I just saw one in my shop that had the original instructions with it. I have a scan of the instruction sheet.
because the name speed boat means its a fast boat why else would it be called a speed boat
The closer to the maximum speed the boat gets the harder it is to increase the speed.
speed boat
A speed boat is generally between 14ft and 22ft in length.
The first speed boat was invented in 1910 by David Harmon
180 miles per hour is the maximum boat speed registered
on a speed boat to stop it from you coat it with oil i thimk
If the boat is moving downstream, you add the speed of the boat with the speed of the river flow. Therefore, the velocity of the boat downstream is 18 km/h. If the boat is moving upstream, you subtract the river flow speed from the boat's speed, so in this case, it would be 12 km/h.
The Flying Wasp
Yes, especially the weight of the boat. Both of them really affects the speed when you sail to the ocean. Even if you have a small boat but it is fully loaded with your stuffs it will have a slow start before it regains the normal speed.
it has speed