In BFK p. 123. Chapter 4 - Ground wars part states in the description of Heavy Aeronautica unit that the Fury interceptor is an example. The rules of this chapter say you can ACQ one Heavy (-20) Aeronautica (-30) Modern (-10) unit - like the Fury - with a -60 modifier with Volunteer (+/-0, 30 Skill rating) quality crew.
In ItS p. 181. there is the Calixis-Pattern Fury Interceptor with an availability of Extr. Rare (-30). And that's it!
??? -30 VS -60 ????
Tell me the truth, Farseer!