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Declassified record · U.S. Department of Energy

TWX to a Burch, Et Al, Subject: Concern Has Developed Over Possibility of Premature Firing of Cut Down Dquibs on the System of Rigging for Yucca

Dated
Mar 25, 1958
Document type
Correspondence
Length
2 pages
Open the original scanArchive record OSTI ID 16001489 · public domain

Document text

Machine-read from the scan, so expect some errors. Lines that couldn’t be read are left out.

Page 1

TO LASL LOS ALAMOS NMEX FOR AUSTIN BLJRCHINFO GRAVES FROM STOUT OVER POSSIBILITYOF PREMATUREFIRING OF SYSTEM OF RIGGING FOR YUCCA PD CAUSE OF BE INDUCEDELECTRIC CURRENTS RADAR ON THE BOXER PD SQUIBS WITH FOUR GRAIN NOMINAL LOAD PD CONCERN HAS DEVELOPED CUT DOWN SQUIBS ON THE ARE DU PONT SUGAR DASH SIX EIGHT ‘ CMA MINIMUM FIRING CURRENT ZERO ~ POIIJT THPJE EIGHT AMPERE AVERAGE CMA BRIDGE WIRE RESISTANCEONE SEVEIJTHREE TO ONE EIGHT THREE OHMS PER FOOT AT SIX EIGHT DEGREES FOX PD SANDIA CORPORATIONPERSONNELON MARCH TWO ONE CONDUCTED A TEST OF A SQUIB WITH ALL TRANSMITTINGEPUIPMENT IN OPERATION PAGE TWO RUHEAB DOES NOT CONTAIN AND BEAMED TOWARD--THESQUIB CMA AND SQUIB DID NOT FIRE PD DO YOU

Page 2

PAGE TWO RUHEAB 56A REGARD THIS TEST AS ANY GUARANTEEQiERY THE IMiiiITIONOF TRANSMITTERSILENCE AT TIME OF LAUNCHINGWILL IMPOSE SERIOUS PROBLEMS FOR-TASK UNIT THREE PD SINCE IT IS USUALLY RECOMMENDED THAT ELECTRICSQUIBS AND DETONATORSNOT BE USED WITHIN ONE QUARTER MILE OF ROGER FOX TRANSMITTERSCMA SANDIA HAS REQUESTEd THAT ALL ROGER FOX RADIATIONABOARl)THE BOXER BE SHUT OFF FROM ABOUT LAUNCH MINUS ONE’FIVE MINUTES UNTIL LAUNCH PLUS FIVE MINUTES PD THE PREMATUREFIRING OF ANY ONE OF FOUR SQUIBS WOULD RESULT IN DROPPINGTHE YUCCA sYsTEM ABOUT TWO FIVE FEET ON TO THE DECK CMA OBVIOUSLYA HAZARDOUS CONDITIONPD IN ADDITION CMA ONE HALF POUND OF HIGH EXPLOSIVE CMA BELIEVEDHERE TO BE COMPOSITION CHARLIEWILL BE DETONATED IN CUT AWAY CANNISTERBY ELECTRIC BI+ISTINGCAP PD THIS PART OF THE SYSTEM WOULD BE SUBJECTEDTO THE SAME POSSIBILITY OF PREDETONATIONBY INDUCED CURRENTS PD ORDNANCESAFETY MANUAL INDICATESTHIS IS A DISTINCT POSSIBILITYPD INFORMATIONFROM NAVY PERSONNELHERE POINTS OUT EXTENSIVEUSE OF ELECTRIC BLASTING CAPS ON NAVAL VESSELS IN THE PAST UNDER SOMEWHAT LESS INTENSIVERADIO FREQUENCYCONCENTRATIONWITHOUT MISHAP PI) I (OFE) Tj 0