Where can a researcher find an accurate plan view of HMS Achilles with the correct single four-inch gun mountings?
Short answerCheck specialist work by John Jordan or Norman Friedman and the 1937 Transactions of the Institution of Naval Architects.
NotesA viewer needs a reliable plan because available online drawings incorrectly show twin four-inch mountings where Achilles carried singles. John Jordan's work is the first recommendation, with Norman Friedman's books as another likely source. The 1937 Transactions of the Institution of Naval Architects may also contain a contemporary plan. Ship plans are best cross-checked against specialist and professional literature when web diagrams disagree.