II
—
58
5
15, Effects ‘ensat in place
1 March 1998
16, Cloud Sampling Element in place —
15 March 1958
17, Ionosphere Elenent inplace
15 March 1958
18, UHA/VHA Adroraft Element in place
15 March 1958
19,
Beginning of air rehearsals in the
proving ground
. 15 March 1958
The planning directive also (1) showed the organization of Task
Group 7.) and its units, (2) delineated security, intelligence, and pube
lie information policies, (3) described Operations and Training activi-
ties, (4) set forth logistics policies, and (5) outlined the mission of
flight safety programs,
No shot schedule appeared in the planning direc-
tive.
B,
OPERATIONS
Until early October 1957, the 950th Test Group (Nuclear) was engaged in the operational and roll-up phases of Operation PLUMBBOB, cone
ducted at the Nevada Test Site,
The last shot (Morgan) of PLUMBBOB, was
completed on 7 October, concluding the PLUMBBOB test activities of the
Operations Directorate and thus making available all personnel of the
Lgs0th“for the planning of HARDTACK,
Operation Plan. Development of Operation Plan 1-582 cor HARDTACK
was one of the first major planning activities,
The vlan was becun in
October 1957 and was published on 6 January 1958, providing for Task
AFWL/ HQ
49