Very cool ship. Last time I heard "manta ray" was on "Beyond Skin Walker Ranch"... but that was on land. And the "Tick Tack" unidentified flying craft was probably a advanced military drone with a second "thin skin" layer over the whole thing with cooling gasses to hide it from thermal camera's and heat seeking missiles. Is this a "read in between the lines" thing and the Manta Ray has been in use for a while... and it holds one or two navy seals for deploy and return covert missions. Those navy seals are bad asses and don't they train to get into submarine torpedo tubes for exiting the ship under water.