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Is 0.666666666677790 times the speed of light as fast as a Helicopter?

It's about 2,500,000 times as fast as a Helicopter
The speed of a Helicopter is about 0.0000002630 times the speed of light.
(for AH-64A Apache, a.k.a. Hughes Model 77) (maximum cruise speed)
The AH-64 helicopter, one of the primary helicopters used by the United States Army, flies at a top cruise speed of 0.0000002630 times the speed of light. The AH-64 is the primary military helicopter of several nations including the United States, the United Kingdom, Israel, Japan, and the Netherlands.
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