roughness, wind speed, etc: these moumbers say the waves have a maccumm amplitude of 2 ft (from crest to trough), and that the wind Speed averages g 20 knots, constamt from the Ni from about February through July. So far as LaSL is concerned, such a shot is not impossible nor does-{t involve major philosoptiical problems like the air burst, but it is consider ably more difficult operationally. prefer}q tini We would, in the first Place, different site, one where we could use the same photo stations 8 and gamma stations as for the other barge shots. However. the water a {i fough outside the lagoon at any place where this would be , possible, #ei would not trust the presently proposed methods of putting the bonib on aiRarge and would probably have to use a ship. os a 4a far ds the bomb itself is concerned, one would probably talk of The guly} experiment that we would almost certainly lose would be hign-speed casephotography, \-hich can be dome at the distancce we propose, ~~ 3 miles, with almost as good resolution as you like, but which requires a very small fileld of view and could not tolerate the bargets moving about appreciably. (It equild stand 1 ft or so, but no 20 ft, for example.) Assuming this was the| way of additional construsiten: . two new vhoto tovers which the following would be required in the another 10 or 12 miles of timing line; would probably have to be built after the This is veryrglose to the Wocation and might mean serious fall-out problems» ‘In addition to probable loss of the highspeed photography, we would b ment, which uses a wire system: jtrouble on the telemetered alpha measureig.we would either lose or have to run vires from somewhere close to the All these things are not impossibl cost and effort. through the deep water to a station. would add quite appreciably to the ksked for a quick (and wnofficial)/dstimate of the additional cost with regard to instrumentation, Campbell dollars (this is the price of 2 towers plus d guess at a half-million es of wire). Hovever, he felt a more serious difficulty than cost aitine proximity of that location to _« This means cables built between shots, troubles in mooring on hét station, This is about 9 miles from the structures closer than that. have to be run and towers islands, and loss of a photo | and there are This subject was discussed again next day with Gravis in attendance. The final agreement was as follows. LASL feels that this-is operationally feasible and can be done, but cannot supply the extra (in the order will explore of magnitude of a million dollars) which it will cost. further from the logistic point of view whether, if the moneyia raised, the work can be done (e.g., sec whether Spain can take on the} additional effort). The DOD will decide whether such a test is worth thati/ghount of money to them and if so, will see if they can get it. If they “tan, and our investigations indieate it is possible, the shot will be made in that manner. -17- ee