MODEL TESTS ON A BULK OIL CARRIER WITH TWINNACELLE STERN,

Abstract

The report describes tests on a model of a supertanker fitted, consecutively, with a conventional twin-screw stern and a twin-nacelle stern. The results show that the latter design is superior to a conventional design with respect to power requirement and course-keeping ability and produces an acceptably regular wake in way of the propeller disk. Inasmuch as propeller-induced vibrations are becoming increasingly troublesome as speed and power of ships increase, the twin-nacelle stern arrangement would seem to be an excellent arrangement for highpowered, high-block-coefficient vessels. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1965
Accession Number
AD0614905

Entities

People

  • Karl E. Schoenherr

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Coefficients
  • Engineering
  • Mechanical Engineering
  • Mechanical Waves
  • Model Tests
  • Motion
  • Propellers
  • Vibration

Readers

  • Aerodynamics.
  • Naval Architecture and Marine Engineering.
  • Regression Analysis.