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Drone collides with Black Hawk over the UN in New York.
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<blockquote data-quote="Blue Baron" data-source="post: 15923" data-attributes="member: 1204"><p>That would be around 350 m VLOS for a Spark. I loose sight at about 250 m. However, I can spot it farer away at dawn with the flashing lights.</p><p></p><p>However, somebody with better eyes may be able to spot it farer away. Because your 1' limit applies to the ability to separate two dots, not to discern a single spot against a background. If not, we wouldn't be able to see any stars at night at all. Stars are all sub arcseconds ...</p></blockquote><p></p>
[QUOTE="Blue Baron, post: 15923, member: 1204"] That would be around 350 m VLOS for a Spark. I loose sight at about 250 m. However, I can spot it farer away at dawn with the flashing lights. However, somebody with better eyes may be able to spot it farer away. Because your 1' limit applies to the ability to separate two dots, not to discern a single spot against a background. If not, we wouldn't be able to see any stars at night at all. Stars are all sub arcseconds ... [/QUOTE]
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Drone collides with Black Hawk over the UN in New York.