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Full Description & Details
From the geometry involved, the approximate speed of the wingless object can be estimated. The day was clear and sunny, SIghted from a 5-mile height, it was visible aheead by a few miles. It disappeared at least a few miles behind my plane. Since it traversed 15 to 20 miles in 15 to 30 seconds, the speed was between 6000 miles per hour and 16000 miles per hour. the shape was roughly oval, with the rear end tapered.
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