(September 18, 2023 at 2:34 pm)arewethereyet Wrote:(September 18, 2023 at 2:32 pm)Anomalocaris Wrote: stealthy military aircraft operating in or near civilian controlled air space carry lungberg lens radar reflectors that allows it to be detected and tracked like normal aircraft by air traffic control radars. but air traffic control radars don’t have great coverage of low altitude in hilly terrains and don’t necessarily have great data refresh rate, so it it were operating below, say 1000 feet it may not show up on any radar or show up only intermittently.
Ain't no hills down Charleston way. It's barely above sea level.
even in dead flat country with no hills, ravines or man made radar obstacles like buildings if the nearest air traffic control or airport surveillance radar is 30 miles away then it won’t reliably see any aircraft operating below 500 feet, 40 miles away and it is 1000 feet