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AIRCRAFT STRUCTURES
The Air Force was concerned with determining the structural response o*

a Be52D aircraft when subject to side loads.

This determination had as an

ultimate objective the definition of the delivery capability of the aircraf*
for multiple delivery tactics.

The data obtained wus successful in verifviii,

that the predictionsof weapon effects and the analysis utilized in predicting structural responses were satisfactory.

\ range of angles with respec

to ground zero from 35 degrees head-on to 180 degrees tail-to in ezimuth, ji-cluding three different elevation angles, were utilized in verifying the an.lysis and predictions.

It was concluded that the data obtained wes sufficient

to verify the analysis used to predict structural side loads from which the

nuclear weapon delivery capcbility for multiple delivery tactics could be
defined.
The Navy sponsored a project, in which two A4Del aircraft participated
jointly in several shots, in order to measure weapon in-puts and etructural
responses to high yield weapons.

The final objective was the correlation of

the data with that of the Plumbbob tests in order to define the high-yield
(egaton range) weapon delivery capability of the A4D-1.

From the preliminary

data obtained it was determined tict mexsured stresses were consistent with
predictions obtained from the aralyticii techniques employed,

It is antici-

pated that additional data obtained from wing pressure instrumentation will
assist in further refining the dynamic analysis.

Thermal input data was gen-

erally substantially lower than predicted although the temperature response
calculations based upon measured inputs in general showed good correlation.

It was concluded that the data obtained, when combined with thct obtained
from Operation Plumbbob and the aircraft performence cheracteristics, will

permit the definition of the nuclear we2pon delivery capability of the A4D

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