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Fixed, non-sweep missile radar only 100 feet off the deck tracks target at 50 nautical miles.
This is impossible if earth were a globe. At that distance, the target would be below the curve, unable to be tracked.
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The fact is, radar is located sometimes 175 feet above the water surface on a ship. Height above the deck is meaningless.
50 nm visibility is no problem at that height. Another fail for flat-earthdom syndrome!
BTW your video has never worked since you posted it. It's not available. Must have been no good anyway.