Document Details


Title:
REPORT TO THE TEST DIRECTOR, OPERATION HARDTACK, APRIL - OCTOBER 1958, TIMING AND FIRING
Author(s):
Subject Terms:
HARDTACK I OPERATION; EQUIPMENT; DIAGRAMS
Addressee:
MEHAS T C
Document Location:
Location - NNSA/NSO Nuclear Testing Archive Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - CIC@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1959 Sep 14
Declassification Status:
Declassified
Document Pages:
0090
Accession Number:
NV0051225
Document Number(s):
WT1686
Originating Research Org.:
* EG+G
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
ON OPERATION HARDTACK, ( ) GERMESHAUSEN AND GRIER, INC. (TANK UNIT 5) FURNISHED ARMING AND FIRING SIGNALS FOR THIRTY FIVE DEVICES IN ADDITI ON TO A SEQUENCE OF TIMING SIGNALS FOR THE EXPERIMENTAL PROGRAMS. EG+G WAS ALSO RESPONSIBLE FOR PROVIDING A VOICE COUNTDOWN ON ALL DRY RUNS AND DETONATIONS, MONITORING VITAL INFORMATION, AND DETERMINING WHERE P RACTICABLE, THE TIME OF BURSTS AND THE BHANGMETER YIELD. THE COMPLEXIT Y OF THE SHOT SCHEDULE, WHICH INVOLVED SEVERAL DIFFERING MODES OF DETO NATION, NECESSITATED A MULTIPLE TIMING AND FIRING INSTALLATION COMPRIS ING SEVEN INDEPENDENT SYSTEMS; THREE WERE OPERATED FROM ENIWETOK, TWO FROM BIKINI, AND ONE OF THE USS BOXER, AND ONE ON JOHNSTON ISLAND (OPE RATION NEWSREEL). BESIDES THE FOUR CONTROL CENTERS, THE TIMING AND FIR ING COMPLEX INCLUDED NINE ISLAND-BASED SIGNAL-DISTRIBUTION STATIONS, A S WELL AS SEVERAL SHIPOARD STATIONS. A VERSATILE TIMING SYSTEM WAS DEV ISED FOR THIS OPERATION WHICH EMPLOYED A CODER-DECODER COMBINATION CAP ABLE OF TRANSMITTING TWENTY-FOUR SIGNALS. SIGNALS WERE TRANSMITTED BY TELEPHONE LINE OR ON RADIO FREQUENCIES AS DICTATED BY THE INDIVIDUAL S HOT REQUIREMENTS. THE TIMING AND FIRING SYSTEM OPERATED ACCURATELY AND RELIABLY, AND ALL SIGNALS WERE TRANSMITTED.


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