Ship Design and Construction, Volume II

Chapter 54: Oceanographic Research Ships

John C. Daidola

54.1 NOMENCLATURE

L =

unspecified vessel length, m

LOA =

vessel length overall, m

LBP =

vessel length between perpendiculars, m

D =

depth, m

B =

beam, m

d =

draft, m

?

displacement, tonnes

?

Volume of displacement, m 3

C B =

block coefficient ( ?/(LBPxBxd))

C P =

prismatic coefficient (C B/C m)

C WP =

waterplane coefficient (area of water-plane at d/(Lxd))

C M =

midship section coefficient (immersed area of transverse midship section/(Bxd))

FP =

forward perpendicular

AP =

after perpendicular

Ssn =

sea state n

V/ ?L =

speed/length ratio

54.2 INTRODUCTION

The revelation that most of the progress in developing our extensive knowledge of the ocean has been made since World War II may be surprising (1). This has been accomplished by a relatively small but increasing number of specialized ships which have carried oceanographers and their equipment to the far reaches of the globe to conduct research on the behavior of the sea surface and currents, temperature gradients, bottom topography, biological activity, composition beneath the earth's crust, and the sea's chemical composition, to name just a few. Yet even today the ocean is somewhat more mystifying than outer space. Oceanographic investigations continue to attract world-wide interest.

The fundamental principles underlying the design of oceanographic ships are, of course, those applicable in the design of...

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