Based on the ubiquitous Ptolemy Class Transport Hull, the Nightingale
entered service in 2242. Compared to a standard Ptolemy, the class has
improved shielding and internal modifications to make the class more
suitable for the medical role. Due to these modifications Nightingale class
ships are rarely used in standard transport duties, and are virtually
permanently attached to their medical pod. The two Mk 1 Nightingales are
based on the Ptolemy hull and systems, the single Mk 2 is based on a Keppler
hull.
With the outbreak of the four years war, five Ptolemy's taken up from
mercantile service were also modified to Nightingale standards, as Mk 3s.
The other three ships were also modified to this common standard.
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