ASTM-F1321 Historical Revision Information
Standard Guide for Conducting a Stability Test (Lightweight Survey and Inclining Experiment) to Determine the Light Ship Displacement and Centers of Gravity of a Vessel

ASTM-F1321 - 1991 EDITION - SUPERSEDED
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Standard Guide for Conducting a Stability Test (Lightweight Survey and Inclining Experiment) to Determine the Light Ship Displacement and Centers of Gravity of a Vessel
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Scope

1.1 This guide covers the determination of a vessel's light ship characteristics. The stability test can be considered to be two separate tasks; the lightweight survey and the inclining experiment. The stability test is required for most vessels upon their completion and after major conversions. It is normally conducted inshore in calm weather conditions and usually requires the vessel be taken out of service to prepare for and conduct the stability test. The three light ship characteristics determined from the stability test for conventional (symmetrical) ships are displacement (displ), longitudinal center of gravity (LCG), and the vertical center of gravity (KG). The transverse center of gravity (TCG) may also be determined for mobile offshore drilling units (MODUs) and other vessels which are asymmetrical about the centerline or whose internal arrangement or outfitting is such that an inherent list may develop from off-center weight. Because of their nature, other special considerations not specifically addressed in this guide may be necessary for some MODUs.

1.2 This standard does not purport to address the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

Angle of inclination; Center of gravity; Displacement; Draft; Equilibrium heel angle; Inclining experiment; Light ship displacement; Marine (shipboard) systems/subsystems/equipment; Metacenter; Mooring; Pendulum test; Shipbuilding materials-general; Stability; Tankage; conducting a stability test (lightweight survey and inclining; experiment) to determine the light ship displacement and centers of; gravity of a vessel, guide,; United States Coast Guard (USCG); U.S. Navy requirements for conducting a stability test to determine the; light ship displacement and centers of gravity of a vessel, annex; ICS Number Code 47.020.01 (General standards related to shipbuilding and marine structures)

To find similar documents by ASTM Volume:

01.07 (Ships and Marine Technology)

To find similar documents by classification:

47.020.01 (General standards related to shipbuilding and marine structures)

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Document Number

ASTM-F1321-91

Revision Level

1991 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Aug. 15, 1991

Document Type

Guide

Page Count

28 pages

Committee Number

F25.01