the sampler ai.
3
See Figure 6 for a summary of the B-57B and B-57D flying activities
during Operation HARDTACK.
The participation of the Naval Effects Element was planned by the
Naval Air Special Weapons Facility lecated at Kirtland AFB,
to participate with two (2) AlD's and two (2) FJl's.
They planned
The mission of these
aircraft was to measure the structural response and blast loading of the
aircraft when exposed to nuclear detonations,
Participation by the ALD's and the FJl's was practically identical.
During April, May and June the FJl's flew seventy-seven hours and the ALD's
fley eighty-four hours,
These aircraft participated in eight (8) nuclear
detonations and flew sixty-nine sorties practicing for these events,
They ¥
also flew eight (8) sorties for missions which were postponed after the
aircraft had become airborne,
The events in which they participated were:
CACTUS, BUTTHRNUT, KOA, YELLOWWOOD, MAGNOLIA, TOBACCO, ROSE and WALNUT.
Some of the earlier shots failed to give +he predicted yrelds and no
worthwhile data was obtained from sone of these events,
Cn others, hove
ever, the WALNUT Event in particular, excellent results were obtained.
These aircraft participated in every event as scheduled and experienced
no air aborts or pre-take off cancellations.
The. Navy fighters were loaded on the USS BCX&R for transportation to
Honolulu on 2) June, concluding their par ticipation in Operation HARDTACH ,
The USAF had only one (1) effects aircraft in Operation HARUTACK.
This aircraft was a B-52 furnished by the ‘Jright Air Development Center.
The effects tests were a continuation of the test series conducted during
ReDWING.,
On that operation, effects tests heed-on and tail-to the detona-
tion were carried out.
The HARDTACK tests were designed to give data on
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