Schneider Guns — Krupp Guns — Bethlehem Guns - U. S. Naval

Ordnance.

Section IV-Rigging and Ropes.

Standing Rigging Table of Wire Rope-Splices-Thimbles

-Sheaves-Turnbuckles - Running Rigging-Manila-Hemp

- Coir - Blocks - Standard Blocks, U. S. N. - Cargo Blocks

Tackles Power gained by Blocks-Whip-Double Whip-

Guntackle Purchase - Burton-Double Spanish Burton - Luff

Tackle Rigging Derricks.

Section V.- Equipment.

Anchors and Chains-Lloyd's Equipment - Lloyd's Table
Hawsers and Warps - Tables of Equipment - Weights - Moor-
ing Swivel-Blake Stopper-Senhouse Slip-Admiralty Cables
Chain Cable Links-Club Shackle - Chain Swivel - Kenter
Shackle-Boats Notes on Construction — Diagram of Propor-
tions - Lifeboats-Cutters- Dinghies - Gigs - Barges-Galleys
-Table of Scantlings for Rowboats-Sail Area-Drawing of
Standard Lifeboat in Detail-Lifting Rings and Slings - Board
of Trade Requirements - Supervising Inspector's Requirements
Sea Anchors-Axes, Buckets, etc. Light Screens - Ton-
Various Tonnage Rules-Y. R. A. and N. Y. Y. C.
Windlasses - Towing Machines, etc.

nage

Rules

-

Section VI. — Miscellaneous.

Tables of Weights - Measures - Oil Fuel Data - Weights of

Bolts and Nuts-Tank Capacities- Unit Equivalents-Squares,

Cubes, and Fourth Powers of Fractions - Powers and Roots-

Speed Tables-Foreign Weights and Measures - Stowages of

Merchandise Cold Storage Temperatures Distances from

Colon,

Section VII. - Tables.

-

Complete mathematical tables specially arranged.

SYMBOLS COMMON IN NAVAL ARCHI

TECTURE USED IN THIS BOOK.

(CE)

mersed lateral plane.

a.

Distance of centre of effort forward of centre of im

Coefficient of fineness of load water line =

Α

LX B

β.

B

C.B.

Centre of gravity of displacement (centre of buoyancy).
Centre of gravity of displacement from aft perpen-

dicular.

Centre of gravity of ship above base.

Centre of gravity of ship and engines.

Moulded depth to upper deck.

Displacement in tons of salt water (gross).

Displacement in cubic feet (volume).

Displacement in tons at load draught.

Displacement in tons at light.

Displacement of fore body.

Displacement of after body.

Coefficient of fineness of displacement (block coefficient).
Relation coefficient.

Freeboard from statutory deck line.

Freeboard to top of rail amidship.

G

H

After perpendicular (after side of rudder post).

Forward perpendicular (fore side of stem at upper deck).
Indicates the half-length between perpendiculars and is
the sign of the mid-section or "dead flat."

xi

Mid-section area.

Height of transverse metacentre above base.
Stability lever.

Height of transverse metacentre above centre of gravity.
Height of transverse metacentre above centre of buoy-
ancy.

Longitudinal metacentre above base.

Centre of gravity below L. W.L.

Centre of gravity above L. W.L.

Prismatic coefficient.

Indicated horse power.

Effective horse power.

Nominal horse power.

B.P... . Length of ship between perpendiculars.

W.L.

.

wl O.A.

I.

M

M"

W

CE

y.

Ꮖ .

.

W.S.

R

d.

Length of ship on load water line.

Water line.

Placed before dimensions indicates that these are the registered or tonnage dimensions.

Moment of inertia of load water plane.

Metacentre and moment.

Moment to alter trim one inch at load line.

On drawings locates the intersection of projected water line with the elevation.

Centre of gravity, or moment about centre.

Centre of gravity of water line.

Centre of gravity of mid-section area.

Centre of gravity of sail plan, or centre of effort.
Ordinates or stations.

Common interval or abscissa between ordinates.
Area of wetted surface.

Resistance.

G, or U, Half-girth of midship section (Lloyd's).
Draught of water moulded (mean).

Per inch; also tons per inch of immersion at L. W.L.
Square foot.

Algebraical Signs.

:: Multiplied by. Ratio. Is to. f Functions.

: So is. As (ratio). Divided by.9 Gravity.