DEPARTMENT OF
OEFENSE
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MILITARY LIAISON COMMITTEE
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No. AH of +k Coplea, Series aC
WASHINGTON <5, 0. €.
411196
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DEC 19 1956
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MEMORANDUM POR The Chairmen, L. S. atomic Energy Commission
SUBJECT.
digh Aititude Test for Operation HARDTACK
keferente.
Latkar to the Chatruwan, Militsry Liaison Committes,
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fro the Catearal Merager, Atomic Soargy Commission,
dated 26 Novemoer 1956, re the above subject.
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The above reference contained the proposal chat high altitud
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testing De undertaker jointly by the Deparrment of Defense and the
atoatc Snergy Commission.
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2. The Department of Sefanee coasurs thec a requirement existe
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‘7 condsce Casting et very nigh alcitudes during Operation HARDTACK, ©
‘, cS
A enok ak s00ut 250,000 feet in she cacge of 1 - GMT will meet wose <>
of che oresent Deperement cf Jeferes requirements,
Ip addition, tbe
Devartmert nas under consideration « acated requirement for a shot of
ac \aaet 40 KT ac abeut 100,600 feet ic ordar to cast remote datects-
bility.
,
3. As mencioned (n the raferenced lecter, The-Deparmment of Defense
eCula ve veeponeibie for the effects measurements wade from ground and
manned aircraft instrumentation. it 1s believed chat presence DOD require:
nette Can be mer oy very Licrle additional tnstrumentation, such aa in
the etter oody of the weazon-carrying sisaila. The DOD does not beireve
ciac a rocket-borne instrument srray ¢s extensive as thac outlined in
rhe Sandia Corporation study is warranted at chis time, both from the
atandpeics of feasioilitcy and the expecae involved.
Considering the pre-
sont atatue of instrumenc development and che time remaining vdefore
Uperation HARDTACK, it is celieved chat only minimm measurements of
esaential effects dara can ba supported. As stated in the above cafsurence
The acomic Energy Comaission should plan op diagnostic measurements, 2
(.neiude/the deteruination of yield.
Pusrher study is r@quircec tc ested-
lien the olacement of che inatrumecce and the extent co which the diay:
Nostis aeasurements will wees che 3OG requiremencs for effects daca,
ardac chat imetxumece developweec wil! noc be duplicate.
prepared cc
finance additional miesiles for diagnostic neasurements.
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