K-Wing=A-10 Warthog, useful in the role it was designed, subjectively ugly, possibly obsolete/too specialized to be useful(even before production), a source of constant skub.
*snip*
All of my choices are subjective and not the point, the GCW is WW II in space.
Other than the A-10 not being a WWII aircraft, I can buy most of these comparisons ... I'd compare the K-wing more to a TBF Avenger or Sturmovik, though (or maybe the Y-wing is the Sturmovik, come to think of it).