Accession Number:

AD0767791

Title:

Flotation Standards Analysis.

Descriptive Note:

Final research and development rept.,

Corporate Author:

WYLE LABS HUNTSVILLE ALA EASTERN OPERATIONS

Personal Author(s):

Report Date:

1973-06-01

Pagination or Media Count:

72.0

Abstract:

Flotation rules and regulations from a variety of sources are analyzed as part of a Flotation research and development study. In addition to these analyses, three Flotation Standards are critically compared on a term by term basis. The three standards are 1 The USCG Basic Flotation Standard, 2 The American Boat and Yacht Council Proposed Upright and Level Flotation Standard Project H-8B, and 3 a proposed Alternate Flotation Standard representing an upgrade of the ABYC-H-8B proposed standard. Limited proof testing, using a John boat, a Bass boat and an 18 ft 10 boat, is carried out in order to investigate upright and level flotation and the stability of swamped boats. It is found that although each boat floats upright and level when swamped, movement outboard of weights in excess of 12.5 of the dry live load capacity causes a loss of positive stability defined by the conditions that gunwale immersion does not exceed one foot, and list does not exceed 30 degrees. These results suggest that although a basic upright and level attitude may be obtained without too much difficulty, the requirement for stability under the movement of passenger weight is much more difficult to obtain. Author-PL

Subject Categories:

  • Marine Engineering
  • Safety Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE