® Recorder, « eu gHILL The collective protector was powered with a gasoline engine “and the ratemeter with a gasoline driven generator. Considerable difficulty was encountered in keeping the gasoline generator operating over the full 24-hour period required as the equipment had to be started on the morning of X-Ray-minum-one day and had to operate continually until after the detonation, The csenerators available were small and not desimed for such continuous use, On 5 April 194S a meeting was called by the Scientific Director to discuss the service tests and at that time it was conclided that the 1000 foot Corps of Engineers structure stood little chance of standing It was considered unwise to place the equipment in ’ a structure which was apparently ddemed and from which there could con- +t 2 . up under the blast. sequently be no record obtained. Therefore, it was decided to remove ’ ? “ the collective protector fran this structure and place it in a small boat downwind, ‘ An LOVP which was due for survey was procured from TG 7.3 for this purpose. ' . Immediately following FETER-X-Ray day the collective protector, along with the ratemeter and other recording equipment was removed from the 1000 foot structure and loaded aboard the ICVP which was given the code name, "Dead Duck". Because of the continual difficulties which had been experienced with the generators, two new ones were procured by TG 7,1 from TG 7.2, ~ oo The larger of these, a 5 kw generator, was placed in the LCVP and a smaller one in the 1500 foot OCE structure. Both of these installations were then given satisfactory 24-hour test runs and the ICVP was installed in position about 2500 yards downwind on X-Ray-minus two, On X~Ray-minus-one, -R- oo 8 ‘ 1 oom ae, 2k mI SM Le Le.cenmpae bas mee tan ete ted . . : ~~ Xs Woe - —o we , . irae . “oN A _* rerehares = cat coe - ¢ Lo _ _ae = oN” Le ° “7 ‘- ree mS . + NA wets - :