XF-84H Thunderscreech

Discussion in 'Boats, Planes, Other' started by Atomic2, May 9, 2011.

  1. #1 Atomic2, May 9, 2011
    Last edited by a moderator: Apr 25, 2016

    Interesting read. Particularly about the noise it made.
    "Unlike standard propellers that turn at subsonic speeds, the outer 24–30 inches of the blades on the XF-84H's propeller traveled faster than the speed of sound even at idle thrust, producing a continuous visible sonic boom that radiated laterally from the propellers for hundreds of yards. The shock wave was actually powerful enough to knock a man down; an unfortunate crew chief who was inside a nearby C-47 was severely incapacitated during a 30-minute ground run"
  2. It was still slowing than a F8F Bearcat racer.
  3. #3 a5841, May 10, 2011
    Last edited by a moderator: Apr 25, 2016
  4. They say it hit 623 during testing, and was designed to hit 670
  5. Sad, but it never actually did that speed

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