PREFACE TO THIRD EDITION. The preceding editions of this handbook were received so favorably that it was decided to enlarge the third edition by the addition of further “unified details such as made the earlier editions noteworthy. There has also been included much new matter dealing with ventilation and other subjects, while other portions of the book have been revised and brought up-to-date. It is hoped that in its enlarged form “The Naval Constructor" will continue to occupy its present position as a daily book of reference for those engaged in the design, construction and maintenance of ships. GEORGE SIMPSON. 17 Battery Place, NEW YORK CITY, 1st May, 1914. CONTENTS. Section I. — Ship Calculations. Symbols — Algebraical Signs — Displacement — Simpson's First Rule Multipliers for Subdivided Intervals — Proof of Simp- son's Rule - Displacement Sections:- Bottom Half-breadth — Dis- placement Table — Area of Water Plane - Tons per Inch Iminersion — Coefficient — Immersion Passing from Salt to Fresh Water — Area of Midship Section — Coefficient B- Prismatic Coefficient - Centre of Buoyancy - Approximate Rule for Cen- tre of Buoyancy - Centre of Buoyancy Longitudinally — Trans- verse Metacentre - B. M. - Moment of Inertia of Water Plane - Longitudinal Metacentre Centre of Flotation - Approxiinate Rule for L.B.M. Moment to Change Trim — Change of Trim Moment to Alter Trim One Inch — Approximate Rule for M. Alteration in Trim through shipping a small weight — Tchiby- scheff's Sections for “ Lucania" - - Displacement Sheet by Tchiby- Coefficients for Centre of Gravity — Moment of Inertia of Diagram of Bilge Diagonals — Diagram of L.W.L. Half-breadths V Depth of Hold — Coefficient of Fineness — Moulded Depth — - Erections on Deck — Sheer — Round of Beam -- Explanatory Wetted Surface Formula — Launching — Launching Periods Rudder Formulæ - Spectacle Frames — Proportions of Section II. Strength of Materials. Proof Strength — Stress and Strain — Tensile Stress — Compres- Resilience — Elasticity-Modulus of Elasticity— Permanent Set – Values for Johnson's Formula — Pipe Pillars — Standard Pipe Section III. — Fittings and Details. Hatch Corner Doublings - Corner Angles — Hatch Fore and on Bulkheads — Deep Framing — Caulking - Chafing Pieces- - Holes through Shell-Doubling Plates — Hood End Plates - Rotating Davit — Mallory Davit — Swan-neck Davit -Mine - Dimensions of Wood Screws - Areas of Sea Anchors — Detail |