ENGINE ROOM

This article appears in Volume V24, Page 979 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: EMS-EUD

ENGINE ROOM BULKHEAD
WATERTIGHT
11111 hH:1 f 3~~ Ili iiII_II1111 illC 1111111111 11
adopted in large passenger steamers of this class.' In both the transverse framing becomes deeper and stronger as the extremities are approached, while the decks and side stringers are all continued to the extremities,

finishing

FINISHING

in strong breast-hooks, and additional stringers, breast-hooks and panting beams are introduced. It is worthy of

note

NOTE
NOTE (Lat. nota, mark, sign, from noscere, to know)

that the

rudder

RUDDER (O.E. Rather, i.e. rower)

and steering gear are in this

vessel

VESSEL (O. Fr. vaissel, from a rare Lat. vascellum, dim. of vas, vase, urn)

entirely under water, so that she may be used for war purposes without running the

risk

RISK

of disablement by the

rudder

RUDDER (O.E. Rather, i.e. rower)

or steering gear being struck by projectiles. Above the water the stern is finished off so as to have the

appearance

APPEARANCE (from Lat. apparere, to appear)

of being fitted with an

ordinary

ORDINARY (med. Lat. ordinarius, Fr. ordinaire)

rudder. This important departure from the usual practice was first introduced by Professor Biles in the " City of Paris," and the " Campania " and her

sister

SISTER

the " Lucania " were in 1902 the only British ships so fitted.
Fig. 122 gives in perspective the general structural arrangements of the Japanesecruiser" Idzumo," andfigs. 118-121 (PlateXIV.) arefrom photographs of the

vessel

VESSEL (O. Fr. vaissel, from a rare Lat. vascellum, dim. of vas, vase, urn)

in course of construction. It Differraces will be seen that the departures from the structural arrange- between
ments of a merchant ship are very considerable. As already war and pointed out, lighter scantlings are used in warships than wrchant in

ordinary

ORDINARY (med. Lat. ordinarius, Fr. ordinaire)

merchant ships. This is effected by more strips. carefully devised and more costly arrangements of framing
and plating, and by making the structural features necessary in a warship for

protection

PROTECTION

, &c., serve also for local and general strength.
In warships, frames are placed at greater distances apart, 4 ft. amid-ships and 3 ft. at the extremities being the usual spacing, as compared with some 2 ft. in a merchant ship. On the other hand, there are more continuous longitudinals in the framing of a warship, which extend in depth from the inner bottom to the shell-plating, and give
' We are indebted to the

late

LATE

Dr Elgar, F.R.S., for these and other plans of the " Campania."

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