How fast is the fastest helicopter?

Question

The record for the fastest helicopter in the world is held by the Sikorsky X2 Since production has achieved faster speeds, the helicopter first set the unofficial record in 2010 when a demonstrator model reached 287 mph. August 19th, 2019:

Hagrid P Hazard · Accepted Answer

The record for the fastest helicopter in the world is held by the Sikorsky X2 Since production has achieved faster speeds, the helicopter first set the unofficial record in 2010 when a demonstrator model reached 287 mph. August 19th, 2019:

How fast is the fastest helicopter?

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