Date: Tue, 29 Mar 2005 16:55:28 +0100 (BST)
From: daniel wilson <daniejon2000@yahoo.co.uk>
Subject: UFOs at Operation Castle 1954
To: Francis Ridge, Coordinator, Nuclear Connection Project <nicap@insightbb.com>

UFOs at Operation Castle
 

Operation Castle

1954 - Pacific Proving Ground

Last changed 20 December 2000

Operation Castle was a series of high yield thermonuclear weapon design tests. Following the initial experimental demonstration of the Teller-Ulam principles in Operation Ivy (the Sausage device detonated in the Ivy Mike test) both weapon labs rushed to develop a number of deliverable weaponized designs. The original schedule included a weaponized version of the cryogenic fuel system used in Sausage (designated the EC-16, the test device being named JUGHEAD); plus a variety of other extensions and new concepts. One of these new approaches - the use of non-cryogenic "dry" (lithium deuteride) fuel - was a spectacular (and disastrous) success with a yield far exceeding expectations. Some of the other tests were also much larger than expected - in fact the three largest tests ever carried out by the U.S. were all part of Operation Castle.

Not all new concepts were successful, for example the first UCRL thermonuclear device fizzled. Included in the test series were experimental systems not intended for immediate deployment, weapon designs soon deployed on an emergency basis, and two designs that had already reached emergency deployment status despite never having been tested. One of these was the cryogenic TX-16, which was deleted from the test schedule (and removed from service) when solid fuel proved highly effective.

An important factor in planning Castle was the availability of lithium enriched in Li-6. The U.S. thermonuclear weapon program had been stuck in the doldrums prior to the breakthroughs of Ulam and Teller in early 1951, and no plans had been made for producing this fusion fuel. Once a workable design for a high yield fusion weapon had been conceived though, it became a race to get a large lithium enrichment plant into production. The Soviets in contrast had decided to pursue a thermonuclear design of limited potential (the Sloika/Alarm Clock), and had begun constructing lithium enrichment facilities before the United States. The Soviet Union exploded a "dry" device of this type the August preceding Castle - at the time that the first U.S. lithium enrichment plant was just starting up. Due to the current lithium-6 shortage, several weapon designs tested in Castle therefore used only partially enriched, or even unenriched lithium.
 
((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((
 
 
There is reason to believe that the US Government knew that UFOs would appear at Operation Castle in the spring of 1954. One document attests to this.
The document is: HISTORY OF TASK GROUP 7.4. PROVISIONAL FOR THE MONTH OF APRIL, 1954
 
Task Group 7.4. was a part of Joint Task Force Seven which was given the task of conducting the testing of thermonuclear weapons at the Marshall Islands in the spring of 1954.
Task Group 7.4. was an organization of the USAF under Col. Earl. W. Keeling USAF.
 
 
HISTORY OF TASK GROUP 7.4. PROVISIONAL FOR THE MONTH OF APRIL, 1954, on page 473 of the document tells of what should be done in case of an outbreak of war during the on site phase of Castle.
 
(c) Pilots of aircraft engaged in missions other than those in (b) above, will report all unauthorized (or unrecognized) aircraft, surface vessels and submarines. Such sightings will be reported in detail to the AOC. Aircraft will report immediately:
 
1. Vital intelligence sightings inaccordance with the provisions in JANAP 146 (CIRVIS REPORT)
 
2. The sighting of any unidentified flying objects.
    (A VFOB report applies)
------------------------------------------------------------------------------------------------------------------------------------
See sequence page number 555 of 1004
 
 
Available at worf.eh.doe.gov 
OHP Marshall Islands Document Collection Search Page
--------------------------------------------------------------------------------------------- 
 
1.00 OPERATION CASTLE HISTORY OF TASK GROUP 7.4, PROVISIONAL FOR THE MONTH OF APRIL, 1954 (DELETED)

Author: POLAKOF M, SAUNDERS D, HOBBS F, LUCAS G E
Document Date: 04/01/54
Pages:
Document Number: SWC 54-S-5427
Document Type: RT
Location: RONGELAP ISLAND, KWAJALEIN ISLAND, PACIFIC PROVING GROUNDS, ENEMAN ISLAND, UTIRIK ISLAND, KUSAIE ISLAND, ENJERI ISLAND, PONAPE ISLAND, MEDREN ISLAND, MARSHALL ISLANDS, MAJURO ISLAND, BIKINI ATOLL, ENEWETAK ISLAND, ENEWETAK ATOLL, WOTHO ATOLL
Subject Area: MI-107
Kijiner Code:
Keywords: DOSE RATES, BALLOONS, SCHEDULES, EVACUATIONS, PLANS, NATIVES, UNION EVENT, FALLOUT, HISTORICAL SUMMARY, MILITARY PERSONNEL, RESPONSIBILITIES, MILITARY OPERATIONS, ELECTRICAL EQUIPMENT, COMMUNICATIONS, OPERATION PLANS, AIR SAMPLERS, POST-EVENT ACTIVITIES,
Original Doc Number: SWC 54-S-5427
Source Agency: JTF7