Okay, my memory is fuzzy but I seem to remember that a U.S. Navy ship, a destroyer I think, was the subject of an oddball attempt at a full spectrum EM cloak
experiment in the 40's through 60's. According to sources from the TV show I remember, it vanished from both visual sighting and surface radar for a
catalog-able period of minutes to hours. The crew of this ship also experienced weird debilitating "ailments" ranging from spontaneous combustion to
vanishing or phasing out from existence for periods of seconds to hours. You could include this as a spectral ship phasing in and out randomly. I figure
it's odd enough to use. I'll do some digging to see if I can unearth the reference if one of the military buffs can't name it.
experiment in the 40's through 60's. According to sources from the TV show I remember, it vanished from both visual sighting and surface radar for a
catalog-able period of minutes to hours. The crew of this ship also experienced weird debilitating "ailments" ranging from spontaneous combustion to
vanishing or phasing out from existence for periods of seconds to hours. You could include this as a spectral ship phasing in and out randomly. I figure
it's odd enough to use. I'll do some digging to see if I can unearth the reference if one of the military buffs can't name it.