Accession Number : ADA995403

Title :   OPERATION GREENHOUSE. Scientific Director's Report of Atomic Weapon Tests at Eniwetok, 1951. Annex 1.11. Timing and Firing and Fiducial Markers,

Corporate Author : EDGERTON GERMESHAUSEN AND GRIER INC BOSTON MA

Personal Author(s) : Grier,Herbert E.

Report Date : 01 SEP 1985

Pagination or Media Count : 53

Abstract : An automatic remote-control system armed and fired the bomb and sent out a sequence of time signals to experimental equipment on the atoll. A central station at Parry Island sent signals via submarine cables to a timer station on a shot island. The timer station controlled signals to the zero station and to experiments on the island, and through auxiliary stations, it also controlled signal distribution on adjacent islands. Light-sensitive triggering units for apparatus and for accurate standard zero-time reference were provided in the form of Blue Boxes, or fiducial markers.

Descriptors :   *TIMING CIRCUITS, NUCLEAR BOMBS, ARMING DEVICES, MARKERS, TRIGGER CIRCUITS, FIRING MECHANISMS(WEAPON), REMOTE CONTROL, TIME SIGNALS, NUCLEAR EXPLOSION TESTING, TEST EQUIPMENT, ENEWETOK ATOLL

Subject Categories : Fire Control and Bombing Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE