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for radiation measurenent instruments.

Maj. Craw, Unit Supply Officer,

did an outstanding job in procuring supplies and equipment from any and
all sources,

Clerical assistance was obtained fran ATG 7.4 but was

never available in adequate amounts during the entire operation,
By Peter X-ray Day the unit had mapped out radiological safety

procedure aboard aircraft, was well along on the high altitude instrument
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calibration propran, had completed operational plans for test days, was

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plotting radexs daily, had published pertinent mission report forms, had

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the personnel decontamination center at Kwajalein almost ready for

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operation, was well underway on the photographic documentation project

PETER X-RAY DAY

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and had completed the indoctrination of ATG 7.4 personnel.

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ized briefings held at Kwajalein on Peter X-ray Day minus one.

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drone mother aircraft departed for Entwetok to stage.

Monitors accanpany~

ing these aircraft were completely equipped except for film badges which

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At Eniwetok AEC personnel installed air

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were not used on this mission.

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sample filters on the drone aircraft and three of the monitors simulated
installation of the drone film badges.

Ors monitor prepared the radexs.

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This same

day at 1500 hours the drone aircraft, manned by safety crews, and four

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This full scale dress rehearsal commenced with general and special-

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By H - & hours all drone and mother aircraft at Eniwetok were prepared

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amd awaiting arrival of the remaining mother aircraft from Krajalein,

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Meantime, at Kwajalein, the renrinder of ATG 7.4 and T.U. 706,51 were

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making final preparations,

Radexs were completed at 2C00 hours and at

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2300 hours, Peter X-ray Day minus one, aircraft cammenced departure for

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