TAB A
EVENT
OPERATION REDWING
1.
The INCA device was fired at O956M, 22 June 1956, from atop
i. 200-foot tower located on RUJORU Island (PEARL) of ENIWETOK Atoll.
"the bomb cloud reached an estimated height of 42,000 feet.
<énd cloud moved to the west at approximately 10 knots.
The stem
The stem
zppeared to contain more surface debris than usual for tower shots of
¢imilar magnitude and height of burst,
2.
DNA,
The fallout forecast was based on a yield an
cue
SS
“ay
“
3.
cast.
Initial helicopter and P2V surveys verifiad the fallout foreShot island and the lagoon area to the west were the only areas
vhich gave appreciable radiation readings,
rev aircraft to a range of 100 miles.
The cloud was tracked by
At 100 miles the cloud was
zporoximately 50 miles long and 15 miles across with an average intensity
cf 50 mr/hr at 10,000 feet altitude through INCA plus 3 days.
5S.
Based on the radiological surveys of the atoll by helicopter
end P2v aircraft, reentry hour was amounced as 1200M, 22 June 1956.
--4,
vit
wie ee