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    Wikipedia
    https://en.wikipedia.org/wiki/Hull_speed

    Hull speed - Wikipedia

    As a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically in full-formed hulls at a Froude number of about 0.35 (which corresponds to a speed/length ratio (see below for definition) of slightly less than 1.20 knot·ft ) because of the rapid increase of … See more

    Overview

    Hull speed or displacement speed is the speed at which the wavelength of a vessel's bow wave is equal to the waterline length of … See more

    Hull design implications

    Wave-making resistance depends on the proportions and shape of the hull: many modern displacement designs can exceed their hull speed even without planing. These include hulls … See more

    External links

    • Converter: knots > km/h & km/h > knots See more

    Empirical calculation and speed/length ratio

    Hull speed can be calculated by the following formula:
    $${\displaystyle v_{hull}\approx 1.34\times {\sqrt {L_{WL}}}}$$ See more

    First principles calculation

    Because the hull speed is related to the length of the boat and the wavelength of the wave it produces as it moves through water, there is … See more

    See also

    • Ship resistance and propulsion
    • Wave making resistance See more

     
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  3. Wikipedia
    https://en.wikipedia.org/wiki/Froude_number

    Froude number - Wikipedia

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    What is the Froude number of a full-formed Hull?This effect increases dramatically in full-formed hulls at a Froude number of about 0.35 (which corresponds to a speed/length ratio (see below for definition) of slightly less than 1.20 knot·ft −½) because of the rapid increase of resistance from the transverse wave train.

    Hull speed - Wikipedia

    en.wikipedia.org
    Does Froude number influence hull shape?Influence of the Froude number and the hull shape Fig. 17, Fig. 18, Fig. 19 show that the integration limit q ζ ∞ is significantly influenced by the Froude number F and the hull-shape parameters b, d and ℓ b associated with the simple ship models (10), in agreement with Fig. 4, Fig. 5, Fig. 6 for the integration limits q 1 ∞ and q 2 ∞.

    Froude number, hull shape, and convergence of integral representation

    sciencedirect.com
    What is the hull speed rule of thumb?These values, 1.34, 2.5 and very easy 6, are often used in the hull speed rule of thumb used to compare potential speeds of displacement hulls, and this relationship is also fundamental to the Froude number, used in the comparison of different scales of watercraft.

    Wave-making resistance - Wikipedia

    en.wikipedia.org
    How do Froude number and ship hull shape affect wave profile?Froude number and ship hull shape significantly influence convergence of integral representation of wave profile. Analytical relations determine cutoff wavelength in terms of Froude number and three main hull-shape parameters. Parametric analysis based on Hogner potential flow model for a wide range of Froude numbers and 120 ship hulls.

    Froude number, hull shape, and convergence of integral representation

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  5. juliantrubin.com
    https://www.juliantrubin.com/encyclopedia/aviation/hull_speed.html

    Hull Speed & Froude Number: Experiments and Background …

  6. No Frills Sailing
    https://no-frills-sailing.com/hull-speed-vs-frou…

    Hull Speed vs. Froude Number - NO FRILLS …

    WebApr 4, 2018 · In this matter the Froude number is often also referred to as the speed/length-ratio. The charming fact with this ratio is that you now can compare different shaped hulls with the same S/L-ratio to each other no …

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    Froude Number
    Froude Formula
  8. dlba-inc.com
    https://dlba-inc.com/wp-content/uploads/2021/04/Froude-for-Thought.pdf
    [PDF]

    Froude for Thought - DLBA

  9. Princeton University
    https://www.princeton.edu/~maelabs/hpt/me…

    mechanics - Princeton University

    WebThese quantities are combined to form another non-dimensional number, Fr = U/ (Lg) 0.5 , known as the Froude number. At low hull speeds the wave drag coefficient, C Dw = F Dw / ( r U 2 L 2 /2) , is small and it increases …

    Tags:
    Froude Number
    Bow Wave
    Fluid Mechanics
  10. icalculator.com
    https://engineering.icalculator.com/hull-speed-calculator.html

    Understanding Hull Speed | Marine Engineering

  11. The Engineering Handbook
    https://enghandbook.com/naval-architecture/hull-speed

    The Engineering Handbook - Hull Speed

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    Froude Number
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  12. Sailboat Cruising
    https://www.sailboat-cruising.com/hullspeed.…

    Understanding Hullspeed and the Speed/Length Ratio

    WebS/L Ratio = hullspeed (in knots) divided by the square root of the waterline length (in feet) This discovery enabled Froude to compare the performance of boats of different length.

  13. MIT School of Engineering
    https://engineering.mit.edu/engage/ask-an-engineer/...

    MIT School of Engineering | » What is the relationship …

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    Froude Number
    Boat Max Speed
    Boat Length Relative To Speed
  14. Wikipedia
    https://en.wikipedia.org/wiki/Wave-making_resistance

    Wave-making resistance - Wikipedia

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    Hull Speed and Froude Number
    Bow Wave
    Wave-making Resistance
  15. ScienceDirect
    https://www.sciencedirect.com/science/article/abs/pii/S0997754619302444

    Froude number, hull shape, and convergence of integral …

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    Hull Speed
    Froude Number
    Publish Year:2019
  16. United States Naval Academy
    https://www.usna.edu/NAOE/_files/documents/Courses...
    [PDF]

    Chapter 7 Resistance and Powering of Ships - United States …

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  17. YouTube
    https://www.youtube.com/watch?v=kvlI4sVvi7I

    E28 - Hull speed and Froude number - YouTube

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    Distance
  18. Cambridge University Press
    https://assets.cambridge.org/052184/5688/excerpt/...

    Hydrodynamics of High-Speed Marine Vehicles

  19. Marine Insight
    https://www.marineinsight.com/marine-navigation/...

    Understanding Vessel’s Hull Speed And Its Determination

  20. SOLAR NAVIGATOR
    https://www.solarnavigator.net/froude_number_speed_length_ratio.htm

    FROUDE NUMBER SPEED LENGTH RATIO AND HULL FORM …

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    Hull Speed and Froude Number
    William Froude
  21. Omni Calculator
    https://www.omnicalculator.com/physics/froude-number

    Froude Number Calculator

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    Froude Number Example
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  22. turn2engineering.com
    https://turn2engineering.com/froudes-number-calculator

    Froude Number Calculator: Calculate Fr for Fluid Flow Analysis

    Tags:
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    Calculate Froude Number
    Ship Resistance
  23. ScienceDirect
    https://www.sciencedirect.com/science/article/pii/S0997754619302444

    Froude number, hull shape, and convergence of integral …

    Tags:
    Froude Number
    Publish Year:2019
  24. The Engineering ToolBox
    https://www.engineeringtoolbox.com/froude-number-d_578.html

    Froude Number - The Engineering ToolBox

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    Calculate Froude Number
    Froude Formula
    Froude Number Example
  25. oilfieldwiki.com
    http://www.oilfieldwiki.com/wiki/Hull_speed

    Hull speed - OilfieldWiki

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    Froude Number
  26. Omni Calculator
    https://www.omnicalculator.com/sports/hull-speed

    Hull Speed Calculator

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    Hull Speed Calculator
  27. hrbeu.edu.cn
    https://jmsa.hrbeu.edu.cn/oa/pdfdow.aspx?Sid=20240203
    [PDF]

    Numerical Analysis of Fluid Flow Around Ship Hulls Using …

  28. Wiley Online Library
    https://onlinelibrary.wiley.com/doi/10.1002/we.2915

    Experimental validation of a Kalman observer using linearized …

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  30. Wikipedia
    https://en.wikipedia.org/wiki/Reynolds_number

    Reynolds number - Wikipedia

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