How could a navy use a hologram system mounted aboard warships?
Short answerIt could supply tireless specialist support inside the ship or project a false force outside it, but the decoy version would also need radar and sensor spoofing, probably from drones.
NotesThe first interpretation treats a hologram as an onboard specialist. Persistent engineering or medical programs could reduce the number of scarce experts carried at sea, while a human chief engineer and core crew retained authority. The follow-up instead imagines projecting a false carrier group outside the ship. A convincing decoy would have to fool electronic sensors and radar as well as human sight, probably with drones producing returns across a wider area. The two answers separate crew substitution from deception and show that each requires a different supporting system.