APPENDIX A: CHRONOLOGY OF 

 TRIESTE PROGRAM 1958-1961 



2 September 1958. Bathyscaph TRIESTE arrived in 

 San Diego, California, on board the commercial steam- 

 ship, P&T Leader. 



2 December 1958. Bathyscaph TRIESTE made first 

 ocean dive for U. S. Navy. 



3 March 1959. Lieutenant Don Walsh, USN, reported 

 aboard NEL as Officer-in-Charge TRIESTE. 



11 March 1959. TRIESTE was drydocked at its new 

 drydock facility at NEL Waterfront Area. 



22 April 1959. TRIESTE was waterborne after a 

 five-week overhaul period. 



12 May 1959. TRIESTE commenced spring diving 

 series with a dive to 50 feet during the post- overhaul 

 harbor test dive. 



19 May 1959. First ocean dive of the spring diving 

 series was made to a depth of 72 feet. (For dates and 

 details of dives, see Appendix B of this report. ) 



5 June 1959. Final dive of the spring diving series 

 was completed. 



18 June 1959. TRIESTE again drydocked at Navy 

 Electronics Laboratory for modifications prior to deploy- 

 ment to the Guam area. 



June through September 1959. TRIESTE underwent 

 modification at Naval Repair Facility, San Diego, and 

 Navy Electronics Laboratory, San Diego. Alterations 

 involved lengthening of float to increase gasoline capac- 

 ity, increasing the size of the ballast tubs to increase 

 droppable ballast capacity, and installation of the new 

 deep (Krupp) sphere on the float. 



July 1959. Proposal for Project NEKTON submitted 

 to OPNAV for approval. 



2 9 July 1959. Lt Shumaker reported aboard NEL 

 as Assistant Officer-in-Charge of TRIESTE. 



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