these ships now but merely to thinking of this. A requirement for at teast three instrumented aircraft for observations of the high altitude shots is foreseen, Ogle feels that two planes would be close in,with instruments looking almost vertically whereas one would observe the cloud rise from several away. Furthermore, hundred miles KC135's would be ideal, but the CI30's might do, and, for some purposes even C!54's. He expects that DSA will put in a requirement for C Ve a plane or two at the conjugate point. The overall special instrument carrier requirements are as follows: NAVAL a. Three diagnostics ships b. Shot ships perhaps for hedgehog, -oet, gun, and XW-50YZ2: plus perhaps late three spares. c. Targets-with radar reflectors on barges for drop plane- to sight on; also an LSD or two far placement may be needed. d. INstrumentation Rocket ships- possibly two. AIR a. b. c. Drop Planes B-57 Samplers CI30's as presently instrumented will serve as backup for all airdrops (these are not configured to satisfy high altitude shot requirements) d. Instrumentation Aircraft (C3) for high altitude shots OTHER a. US Shot Island-Jarvis perhaps b. Long Distance Time Signal (for Midway, Kuahi, etc) c. Permission to use Midway, Barking Sands, etc. for daunching of instrumentation rocket. A copy of this particular letter would certainly be useful to have declassified and in our files. A 30 November TWX from AFSWC notes that a practice airarraymission Ea was flown out of Kirtland on 15-16 November and that a similar over water mission using actual drop formation aircraft is required. The B52 will operate out of Kirtland with C-130, B57, and C54 aircraft operating out of BF

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