- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Larger than Voyager, the vessel of the survivng Delta Quadrant's robotic race has a subspace defense field inpenetrable to Starfleet targeting scanners and other sensors — though the field can be penetrated at its weak points by matching shield harmonics.