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  2. Strength of ships - Wikipedia

    en.wikipedia.org/wiki/Strength_of_ships

    The strength of ships is a topic of key interest to naval architects and shipbuilders. Ships which are built too strong are heavy, slow, and cost extra money to build and operate since they weigh more, whilst ships which are built too weakly suffer from minor hull damage and in some extreme cases catastrophic failure and sinking.

  3. Forces on sails - Wikipedia

    en.wikipedia.org/wiki/Forces_on_sails

    The scalar values and direction of these components can be dynamic, depending on wind and waves (for a boat). [6] In this case, F T is considered in reference to the direction of the boat's course and is decomposed into driving force ( F R ), in line with the boat's course, and lateral force ( F LAT ), perpendicular with the boat's course.

  4. Light float - Wikipedia

    en.wikipedia.org/wiki/Light_float

    Roaring Middle light float, off King's Lynn at position 52° 58´·64N., 0° 21´·08E.. A light float is a type of lighted navigational aid forming an intermediate class between lightvessels and large lighted buoys; they are generally smaller than lightvessels and carry less powerful lights. [1]

  5. Hull speed - Wikipedia

    en.wikipedia.org/wiki/Hull_speed

    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 the vessel. As boat speed increases from rest, the wavelength of the bow wave increases, and usually its crest-to-trough dimension (height) increases as well. When hull speed is exceeded, a vessel in displacement mode ...

  6. Ship stability - Wikipedia

    en.wikipedia.org/wiki/Ship_stability

    When the boat rolls, the rotation acts as an input to the gyro, causing the gyro to generate rotation around its output axis such that the spin axis rotates to align itself with the input axis. This output rotation is called precession and, in the boat case, the gyro will rotate fore and aft about the output or gimbal axis.

  7. Watch: Large waves surge into Santa Cruz harbor damaging ...

    www.aol.com/watch-large-waves-surge-santa...

    Several boats appeared to be heavily damaged despite owners' attempts to secure their vessels before and during the event. Less than 2 miles away, approximately 150 feet of a pier under ...

  8. Planing (boat) - Wikipedia

    en.wikipedia.org/wiki/Planing_(boat)

    Planing (/ ˈ p l eɪ n ɪ ŋ / PLAY-ning) is the mode of operation for a waterborne craft in which its weight is predominantly supported by hydrodynamic lift, rather than hydrostatic lift . Many forms of marine transport make use of planing, including fast ferries, racing boats, seaplanes, and water skis.

  9. Wave-making resistance - Wikipedia

    en.wikipedia.org/wiki/Wave-making_resistance

    Wave-making resistance is a form of drag that affects surface watercraft, such as boats and ships, and reflects the energy required to push the water out of the way of the hull. The hull of a moving watercraft creates waves (a wake ) which carry energy away and resist the motion of the watercraft.