One thing that is common with almost all Traveller are the duration of
onboard supplies. We know that cost to run the onboard environment is
4000cr a jump pr person onboard. However, there is no indication on
how long the recycling system may run onboard before change of filters
and loading up on supplies needs to be loaded.
FF&S2 from T4 introduces some sort of fix, but it only covers food for
the occupants.