possible yield, because of doubt as to the complete reactions.
With
this thought in mind, the Positioning Cormittes concurred and posi-
tioned the B-36 at 50,000 feet horizontal range and 33,000 feet alti-
tude, and the B47 at 48,000 feet horizontal range and 35,000 feet
altitude.
BRAVO was detonated at 0645 on 1 March.
It was the only
shot during the entire operation to be fired on schedule.
Ground
Zero was in a cab on the reef 2,950 feet from the southwest tip of
Wemu Island in Bikini Atoll.
\
.
Early fireball and Bhangreter results
ee
Pr
ar
placed) wee
Lo
——
+ we
honeal
—_—.
j
The take-off schedule for aircraft was closely adhered to and
sample collecting by manned aircraft commenced.
two FB-36's were used for sampling.
Fifteen F-84's and
It was considered that twelve
¢
-
operational F-84's would constitute the required number of semplers.
In addition, one WB-29 with a "shoe box" type sempler was employed
at H plus one hour for obtaining samples which the scientists hoped
would contain heavy elements.
The two FB-36's were used in an at-
tempt to obtain samples at higher altitudes.
Specifically, it was
desired to cbtain samples in the main clotd to determinewhether
they were more representative than the samples below the main portion.
Sampling progressed as planned and the heavy nuclide samples
from the WB-29 and several gas samples from the F-&4's were transported from Enivetok to Parry in minimum time by H-19's and L-13's.
The other samples, destined for the United States, were removed from
the aircraft, packaged and transported to the C-97 courier for shipment.
A C~47 on stand-by at Eniwetok for recovery of samples at Bi-
kind was not needed.
AFWLHO
»
The equipment in the control RB~-36H operated
a