Mid-Continent Airlines crew reports object near Sioux City

When
First page of a Project Blue Book case file
Project Blue Book's case file on the January 1951 Sioux City report Project Blue Book, Public domain, via Wikimedia Commons

After Sioux City tower controllers reported a bright light, the pilots of a Mid-Continent Airlines DC-3 said a large wing-shaped object passed their nose and flew beside them briefly. The Air Force blamed a B-36; Blue Book chief Edward Ruppelt later wrote that no B-36 could have done it.

Sources

  1. OfficialProject 10073 Record Card: Sioux City, Iowa, 20 Jan 51 (opens in a new tab)U.S. Air Force (copy hosted by UFOScans.com)
  2. FirsthandAnother Saucer Mystery (Capt. Lawrence W. Vinther), FLYING, June 1951 (opens in a new tab)FLYING magazine, copy hosted by Project 1947 / 1951-06
  3. FirsthandThe Report on Unidentified Flying Objects (Edward J. Ruppelt, 1956) (opens in a new tab)Project Gutenberg / 1956

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