PROGRESS REPORT fa, 10 Subcontract No, 108, Appendixes B, sonthiy progress report is the tenth of a series subuitted The information is resgerdec Se vent of Subeccnmtract No. 108 as preliminary end subject to further verificetion and analysis. it was decided, 33 ry 3 oe ving a conference with Dr. Fienin 3 DEY anproaches to the preblem of scaling the filter-diffuser seetion of the ad ASP bead, After studying the design, it was concluded that moving the O-ring a o he © ie] tw ig 46] ¢ @ pad of ta cA fare [at ua) o @ iy $3 @ 0 from the forward end of the ball seal to the aft end of the seal would eliminats sakage, Slight leakage had been ebserved during previous tests at the rubber boot on the push-pull red, around the wiring entries, and at the foruard nose to diffuser joint. Placement of the O-ring af% of these areas prevents any water which may enter from reaching the filter. Changes in design which were made in the field, as well as the current changes, are being incorporated in tne CDC drawings, ii, Manufacture andDelivery After a careful cost analysis, two heads will be manufactured to the new design. The heads of the 13 rounds being returned from Eniwetok are now stored at CDC; the motors are en rovte to Port Chicago, from where they will be shipped ta CDC for storage. Complete.