THE CONSTRUCTION AND SERVICE RECORD OF A 306 FT. ALUMINUM TRAILERSHIP

Construction contracts for a 226-ft aluminum trailership were signed in 1965. After two years of service, it was lengthened by 80 ft and returned to the Florida and Puerto Rico trade. Several months after jumboizing, some problems were encountered. The majority could be described as nuisance cracks; however, several areas deserved analysis in order not to compromise the integrity of the hull. The ship was thoroughly inspected. Hard spots, inadequate bracketing, and fabrication details which prevented sound joints were judged to be responsible. This condition was thought to be aggravated by the lengthening and heavy slamming due to the shape of the forebody. Model tests disproved the slamming theory. It was decided, therefore, not to alter the lines of the ship. A modification plan was adopted to correct internal structural inadequacies. The ship's construction and lengthening are described. The results of numerous inspections and the methods used in effecting the structural changes are reviewed.

• Supplemental Notes:
  • Presented at the Annual Meeting of SNAME. Paper #1.
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Holtyn, C H
  • Gresham, G S
  • Snodgrass, J
  • Hay, R A
  • Hawner, P
• Publication Date: 1972-11-16

Media Info

• Features: References;
• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Aluminum; Structural analysis; Structural parts; Welding
• Uncontrolled Terms: Aluminum welding
• Old TRIS Terms: Jumboizing
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00039340
• Record Type: Publication
• Source Agency: Society of Naval Architects and Marine Engineers
• Files: TRIS
• Created Date: Nov 10 1973 12:00AM