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Cont'd - Cloud Sampling Requirements for Castle,’ 5 Feb 53
(2) Special sample:
. H44:00 te H4y:30 hours.
6.
Collection Altitudes
a.
Six (6) primary samples - initial true altitude 2,000 feet,
. final true altitude at
teast 47,000 fect (a higher altitude would be most
desirable) over the t
b.
7.
intervals listed in paragraph 5.
One (1) special sample - at least 55,000 feet true altitude.
Samoling Aircraft Operational Requirements
a.
Primary samoling aircraft:
{1) Flight time capability (paragraph 5)
(2) Altitude capability (varagraph 6)
(3) Axial flow engines with turbine and air intake located not
less than ten feet from the crew's compartment,
(4) Speed about 0.8 mach.
(5) Capable of carrying high performance filter devices.
(6) Filtered air to crew's compartmant.
{7) Carry gas sampling equipment.
b.
Special sampling aircraft:
(1) Flight time capability (paragraoh 5).
(2) Altitude capability (paragraph 6).
(3) Speed and engine type as required.
(4) Lf a medium speed aircraft is used, the "shoe-box" type
filter is recommended.
(5) If a higher speed jet-type aircraft is used (0.8) mach,
a type of filter similar to that used in IVY is recommended.
(6) Filtered air to crew's comaartment.
8.
Control Aircraft Operational Requirenents
a.
b.
c.
Three scientific personnel.
Position in the inmediate vicinity of the cloud.
Initial true altitude 35,000 to 40,000 fect with capability
of climbing to 45,000 feot as required by cloud structure,
10 hours.
d.
Medium speed with endurance capability of remaining aloft for
e.
Two 8 channel VHF systems.
h.
i.
Continuous positioning to within five miles.
Suitable back-up aircraft,
f.
g.-
I Enel
fApoendix 1
One HF liaison set.
One low frequency homer with about 200 mile ranzing capacity.
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Comiander
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