The Rahanas comes with 6 variants, where . 4 are available for purchase and 2 are not <check that with v4b6; which 2? - Snafu>. It is a common trade ship in Albion, and is used by many factions to move wares around.
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The common variants store either Bulk, Container, Energy or Liquid wares, only. The 'unique' variants may be seen flying around in DeVries (for example) and either carry "Container & Energy" or "Bulk and Liquid". They have a single quote storage volume but it is split as it is for a Scaldis.
The main Campaign -related (Plot) Rahanas (Container & Energy) has it's 130,000 m3 cargo split as follows:
55,000 container (exclusively)
65,000 energy (exclusively)
10,000 fuel (exclusively)
There are now (as of v4) more C+E (or other) Rahanas ships out there for you to exploit if you so wish..