(NICAP.org)
The whole UFO case report:
“Fran Ridge: 
Not listed as an ‘Unknown’ by Project Blue Book, this
case was important to the Air Force. Blue Book Captain Ed Ruppelt said that, ‘it
didn’t take an expert to see that a B-36, even one piloted by an experienced
idiot, could not do what the UFO had done - buzz a DC-3 that was in an aircraft
traffic pattern.’ That was the AF explanation and the case was closed. 
Brad Sparks:
Jan. 20, 1951; Sioux
  City , Iowa 
9:20-9:26 p.m. (CST). Capt. Lawrence W. Vinther,
copilot James F. Bachmeier, passengers AF Colonel and aide, and CAA tower
controller John M. Williams. At 9:20 the 2 CAA tower controllers sighted light
in the W [NW?]. After Vinther’s Mid-Continent Airlines DC-3 took off, he was
asked by the tower to look for light, then while still in a climbing 360° turn
at about 1,000 ft 
they spotted object to the NNW at about 8,000 ft  and 4 miles  away that looked
like a B-29 fuselage with wings but no engines, which blinked some lights like
running lights. Object came at the DC-3, flew across the nose within 200 ft , they had to turn
their heads to follow it then suddenly found it instantly appeared on the other
side again, paralleled them for 2-3 secs, then flew under them and disappeared
in 2-3 secs to the NW. (Battelle Unknown No. 3; cf. NARCAP)”
NOTE: The BBU catalogue (mentioned in Sparks 
Five observers (airline pilots and multiple tower
operators) witnessed the UFO incident. No radar return of the unknown object was
registered.
NICAP.org presents U.S. 
Related posts:
(ufocasebook.com image)
Satellite photo of Sioux City , Iowa 
(tageo.com photo)








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