Søgning i bogen
Den bedste måde at søge i bogen er ved at downloade PDF'en og søge i den.
Derved får du fremhævet ordene visuelt direkte på billedet af siden.
Digitaliseret bog
Bogens tekst er maskinlæst, så der kan være en del fejl og mangler.
CHAPTER V
DESIGN OF THE SUBMARINE TORPEDO BOAT
General FACTORS
In laying down the design for a new submarine boat,
considering the term in its broadest aspect as covering
all vessels capable of navigation when completely sub-
merged, the constructor must consider the problem as a
vessel of a certain displacement, and impose upon himself
certain arbitrary conditions to be met which may be more
or less conflicting in character, in which case a solution
must be reached by compromise, keeping in mind certain
relative values in order to attain an all around tactically
efficient craft as compared to some recognized standard
of ideals.
The selection of type then, should be governed by a
careful weighing of its inherent characteristics as effecting
the main objective of the desired results to be attained.
The submersible lends itself essentially to a relatively
great surface stability, high surface speeds, and possibly
to an extended cruising radius and comfort of the crew
while at sea; while on the other hand it has less stability
when submerged and offers greater resistance in this condi-
tion due to its increased wetted surface and form of super-
structure than does the submarine proper. The submarine
proper by reason of its form cannot adapt itself to high
surface speeds on account of the danger of “rooting” but
58