This html article is produced from an uncorrected text file through optical character recognition. Prior to 1940 articles all text has been corrected, but from 1940 to the present most still remain uncorrected. Artifacts of the scans are misspellings, out-of-context footnotes and sidebars, and other inconsistencies. Adjacent to each text file is a PDF of the article, which accurately and fully conveys the content as it appeared in the issue. The uncorrected text files have been included to enhance the searchability of our content, on our site and in search engines, for our membership, the research community and media organizations. We are working now to provide clean text files for the entire collection.
Completed in Finland in December 1988, the 6,600-ton Soviet Academy of Sciences research ship Akademik Ioffe differs from her earlier sister, the Akademik Sergei Vavilov, in having a unique form of auxiliary propulsion. Two half drum-shaped metal sails can be raised to a vertical position and rotated to catch the winds to provide the 384-foot ship a silent means of maintaining headway during acoustic experiments.