[I ask because the RAW say "installed" for crew requirements, but the only word-search for Backup is the "fib" computer.]
LBB2 size ships (<1000 tons) use LBB2 crew rules.
[I ask because the RAW say "installed" for crew requirements, but the only word-search for Backup is the "fib" computer.]
LBB2 size ships (<1000 tons) use LBB2 crew rules.
Oh sorry. Backup systems come from Adventure 5: Trillion Credit Squadron. In the rules and rulings section. Basically drives, computers, and screens can have backups that come into operation if the primary gets damaged. The rules say they don't consume energy or fuel but don't cover crew requirements.