-—-
.
~~
we GANA a TL Cnet pgm {tfev
re
.
~
TzSX GROUP 7.1
ed zr
JOINT TASK FORCE 7
tos Alemos, New ioxico
\
Joint Task Force 7
Washington 25, D.C.
411432 2A~Wwl Ys-g/_ of€
FROM:
Commander, Task Grou> 7.1
SUBJECT:
CLOUD SAMPLING RECUIRIMENTS FOR cAsTLE (4)wacartd
1.
by
1/1991
Commander
TOs
.
€
Oe
5 February 1953
.
$0 WESSELey 1Uns RAF OFUED URE,
.
,
Fit€
.
”
F-¢ ¢
“S
In order to permit timely action in support of all anticipated
cloud samoling activities for CASTLE, the following requirements are sub-
mitted.
It is pointed out thet further reduction of IVY data and devolop-
ment of operational cencspts may modify, to some extent, these requiremcnis.
2.
Cloud sampling requirerents for CASTLE are, in general, based
upon IVY experience and determined for the expected devices to be teste:|
a
in CASTLE, These requirements are summarized below and’a detailed discuseion of the requircmsnts is contained in Appendix I attached hereto.
°
3. Number of Samoles
~~
q=
a.
Six (6) primary earnlies of each of six (6) devices to be tested.
b.
One (1) special sample at the highest vossible altitude (55,000
fect true altitude) for at lecst four (lk) of the devices to be tested.
hk.
Siso of Each Semple
|
to the Fletcher wing tin type, when:
(1) Sampling pilot exposure on landing is 3.52.
(2) Aircraft epeed is at least 0.6 mach.
(3) Samples are taken later than two hours after shot time.
UNSALAMOS
LAW
en _
[
——+
Collection Times
a.
aries
Cloud penetraticns based on the following time intervals:
| BEST COPY AVAILABL
(1) Prinary sampler:
1st phases Ee 100 to H43:00 hours
Hf: hours.
2nd pha se: H¢3:00 toto H4l:00
3rd phase: Hylj:00 to R¢5:30 hours. (IVY type sampling air-
ereft provides less than a 50% probability in obtaining an acceptable serole
during this phsse)
-
a,
,
a %
S
——s
f
af Be
a. Amcunt of materisl collected on seven (7) to eight (8) square
feet of special filter paper by filter dévices of equivalent performance ~
S$.
,
S ne
Ht
JeSx
3389
g¥e9
3225
BS ase
_