HEADQUARTERS, Joint Task Force SEVEN Washington 25, D. C, 10 November 1953 Annex A to CJTF SEVEN Operation Plan No. 3-53 CONCEPT OF OPERATIONS _ “4 DR s oa 1. . . gy “3 General. Operation CASTLE will be a series of atomic tests conducted early in 1954 at ENIWETCK and BIKINI ATOLLS, MARSHALL ISLANDS, The operation will consist of seven (7) shots. This concept of opera _ tions covers the period beginning with the deployment of major elements of JTF SEVEN in the forward area and terminating with the con- pletion of tests, collection of scientific data and disposition of radioactive samples. 2. wo Mission a. To conduct tests of experimental weapons and devices as outlined below, -'b. To conduct the technical and measurement programs. c. To provide for security of the joint task force and ENIWZTOK and BIKINI ATOLLS. 3. Tasks for Subordinate Units. The conduct of missions 2a and 2b, above, is the responsibility of the Scientific Task Group. Other task groups will furnish the support necessary to fulfill these mis- ° sions. To insure successful accomplishment of the missions, this support will be coordinated by CUTF SEVEN. 4. Shot Schedule (For prediétion of yield and model,see Annex E B, Scien- tific Test Programs). . SHOT. & CODE -. DATE STE #. BRAVO...” -B Day. . #2 UNION 7a #3 YANKEE #4, ECHO #7 - KCON BIKINI - Cn reef 2950 fest, bear- 1 Mar 250 T from SW tip of NAMU. U Day 11-Mar BIKINI (Barge) - Intersection of arcs With radii of 6900 feet from ¢ XUROCHI and three (3) statute miles from AOMCEN, Y Day BIKINI (Barge) - UNION crater. 22 Nar ‘ #5 NECTAR yo 4 . EDay 29 Mar . Day 5 Apr. . 4 ENIWETOK -— EBERTRU ISLAND. BIKINI (Sarge) — UNIO! crater. arr” oo Xn Day 22 apr ‘BIKINI - SNIKRLAN ISLAND. A-~1 ene SECURITY INFORMATION