Sa'Vasku Grub Ships

Grub Serve the same purpose as freighters for other species.  The are
somewhat in-effecient when compared to traditional freighters, but can
serve as useful auxilary warships.  Typically, grubs supply 50% of their
biomass to fleet units, and then leave to get more, but there have been
instances when grubs have been consumed to repair fleet units...  The
in-efficiency of Grubs compared to traditional freighters is mitigated
by the Sa'Vasku ships capability of self-repair.  There is no pulling
fleet units off station and sending them back to base to be fixed.  

Example:

Grub Ship
Mass:  80
Bio-Mass:  45
Carapice:  None
Power Generators:  10
Main Drive Node:  Yes
FTL Drive Node:  Yes
Cortex Nodes:  2
Stingers:  1
Spicules:  2
Pod Launcher:  1

Design Philosophy:
Has just enough power to jump to FTL if the top power generators are
knocked out.
Light weapons so they are self escorting.

Comments or Suggestions?

ias