*
—
eRe
—
vaperous underoloud was present forming a collar around the stem
zt
hed 4dismoterabout:the sam os the upper cloud, It vas initially
tangent te the upper Gloud at the juncture ef the sten with the upper
cloud (forty-five thousand feet) but Caring the eourse of the day
appeared to wubside to about 4O thousand feet, Several projecting
Fingere vere present’ in the peigsberhood of the fuastare of the stem and
MEper ehend an sone of the sampling aircraft were directed te sample in
this Fegion,.
Under these sireunstaneca the altitude performenee of the
airereft was satisfactory, The maximum altitude attained by any aircraft ves
&5 thousand feet indicated,
When such aireraft exist, it would be desiradle
for wery high yielé devices fin the future to have about five thousand feet
additions] ceiling capability in eréer to semple well into the main body of
the eleud,
5o2 in
Sucecesful sempling requires that the airerafthave a fhight tise
eapebility long enough to permit radiation exposure to limit the @ura‘ion
of the mission. This soadition was true enly for Red Flicht. The unforseen
operational limitation in fit times mentioned in Paragraph 1,2 arose
beeanse (1) the radar equipucat an fa
ident
sloudy weather which existed at the time ef sampling, and (2) the operational
commander in charge and giving erders from the control 3-29 appeared to be
unfemilier with the limitations of this equipment, with the phenomena ass-
ociated with a bomb burst, end with the nature of the sampling mission
Steclf, The consequence of this situation was that the sample control B-36
was repeatetiy ordered farther from the main cloud mass when the situation
r
oy
called,a Cleser epproash.