In addition to warships and auxiliaries, the yard constructed a number of utilitarian service craft. One such vessel was YSD-23, a seaplane wrecking derrick. Unlike most of the Navy's floating cranes, the "Mary Anns," used at naval air stations to recover sea planes, were self-propelled.
Development of ship building at the Charlestown Navy Yard-YSD 23
Last updated: February 26, 2015