Detecting enemy planes before radar
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@jon-nyc I guess somewhat equal to the old sailing ships where someone would climb to the top of the sail pole and look for obstacles.
BTW, very cool picture. I love old pictures of history.
@jon-nyc I guess somewhat equal to the old sailing ships where someone would climb to the top of the sail pole and look for obstacles.
BTW, very cool picture. I love old pictures of history.
