According to pg. 184, it takes 3 months to replace the engine of an aero. The table does not distinguish regular and capital scale vessels. Why does it take 3 months to replace a conventional fighter or ASF engine, but only 360 minutes to replace a mech engine?
EDIT: I should note, that while engines are the most egregious example, there are several other cases where replacements/repairs take exceptionally long: avionics (80 hours), FCS (72 hours), and weapons (30 hours). Does it really take 30 hours to repair one medium laser on an ASF but only 120 minutes on a mech?