By Thomas C Gillmer, Bruce Johnson
The e-book covers such themes as send geometry, homes of shipbuilding fabrics, balance, submarine hydrostatics, propellers and propulsion structures, and maneuverability. Appendices comprise conversion tables, lists of unpolluted- and saltwater houses, and numerical integration strategies.
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Equipped as a floating siege engine in a position to face up to the draw back of shell-firing mortars, the Granado used to be one among twelve bomb vessels supplementing the depleted British fleet on the outbreak of the conflict of Jenkins' Ear in 1739. This booklet starts off with a short description of the advance of bomb vessels, from the early galiote a bombe in-built 1682 to the area warfare II screens used for coastal bombardment, and maintains with an in-depth description of the Granado, a precis of the ship's occupation, and greater than 250 specific illustrations.
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Extra resources for Introduction to Naval Architecture
I I. II HALF BREADTI DI••ONAL '''''''NIIf) Figure 3-3. Lines drawing for DD 692 some can be confusing. Nevertheless, these denominations concern themselves with three dimensions. The two categories of size are weight and volume, which in our normal understanding may seem of opposite meaning. Displacement of a ship is a statement of its weight; tonnage is generally a measure of its volume or capacity. Displacement. The weight of the water (salt water at 64 pounds per cubic foot) that the ship displaces when floating freely is called displacement.
A tun of wine weighed approximately 2,240 pounds and occupied nearly 60 cubic feet. Port dues and fees were levied on the basis of this standard, but it quickly became evident that a more equitable basis of measurement was needed to compare vessels of different construction and styles. The first standard measurement rules, established in England in the seventeenth century, consisted simply of the length of keel multiplied by the inside breadth and depth of the hold divided by a factor of 94. This formula, which became law, was considered a fair and uniform average indicating the number of tuns of wine that vessels of the period could carry.
ABSOLUTE AND GAGE PRESSURE If the pressure is uniform over the total area, then P equals FlA. In engineering units, pressure is generally expressed in pounds per square inch (psi) or pounds per square foot (psf). In a solid, because of the possibility of tangential stresses between adjacent particles, the stresses at a given point may be different in different directions. But in a fluid at rest, no tangential stresses can exist, and the only forces between adjacent surfaces are pressure forces normal to the surfaces.