M plus 1 until ii plus § to recover Dan Buoys, The USS O'BANNON launched Dan Buoys fror 1852 on 1: minus 1 to OO4L on i. Day. \ The O'BANIOengaged in recovery operations from t. plus 1 to Kplus 6, Twelve of the 19 buoys were recovered by this vessel, The USS ARIKARA was on a standby basis to assist in recovery operations, if so directed, after returning yardcraft to the lagoon. on rosentry, Ilowever, neither the ArgIKiRA nor YURI was reuuired for-the rpcovery operation, The Usc RENDOVA served as a. control ship to plot locations of the Dan Buoys daily, using reports from patrol planes and estimated drift of the buoys. The RS.DO'A served as coordinator between the planes and recovery vessel in recovery operations, The Patrol PlaneUnit provided two aireraft, one for the inner line and one for outer line, starting on bh plus 1 day to develop contacts, report all buoy contacts to RZIDUVA, and assist the O'BAINON in locating buoys. Another portion of project 5.4a was carried out by installation of "sticky surface 1 foot Square plates" aboard ten of the larger ships of the Task Group to collect fallout particles. The plates were furnished direct to the ships by the Project Officer with installation and removal being made by ships force. The plates were returned to the Project Officer for analysis. 2. — Project 6.2, Air hass Motion Studies, involved one ship on a not to interfere with primary mission basis, . Sponsor of this project was the AEC, This ship was the USS CURTISS, The It was conducted by LASL and the ficer was lr. Daniel F. Seacort of LASL. 115 BEST AVAILABLE COPY M