CG-47

              CG47 CLASS ADVISORY NO. 95-104                                    

                                                                                

                   MK 32 TORPEDO TUBES                                          

                                                                                

 REF/A/GENADMIN/NAVSEA/141141ZAPR95//                                           

                                                                                

 AMPN/REF A MODIFIES TUBE FLASK PRESSURES AND REPORTING REQUIREMENTS            

 ON MK 46 AND MK 50 CAPABLE SHIPS FOR ONE YEAR.//                               

 POC/STUHLMAN/STGC(SW)/-/-/TEL:619-437-2387/TEL:DSN 577-2387//                  

                                                                                

 RMKS/                                                                          

                                                                                

 1. ALL ACTION ADDEES ARE DIRECTED TO TAKE PARAGRAPHS 2 AND 3 OF                

 MESSAGE QUOTED BELOW FOR ACTION.                                               

                                                                                

 QUOTE                                                                          

 R 141141Z APR 95  ZYB  PSN 398448S36                                           

                                                                                

 FM COMNAVSEASYSCOM WASHINGTON DC//91W4//                                       

                                                                                

 TO COMNAVSURFLANT NORFOLK VA//N652//                                           

 COMNAVSURFPAC SAN DIEGO CA//4322//                                             

                                                                                

 INFO CINCLANTFLT NORFOLK VA//411//                                             

 CINCPACFLT PEARL HARBOR HI//411//                                              

 AEGIS PROG MGR WASHINGTON DC//400B/400D/400F/400G//                            

 PEO UNSEAWAR WASHINGTON DC//PMO406L/PMO411/PMO415//                            

 NAVUNSEAWARCENDIV NEWPORT RI//8332/8123/80913//                                

 NAVUNSEAWARCENDIV KEYPORT WA//31/32/322/44//                                   

 NAVSHIPYD NORFOLK VA//JJJ//                                                    

 NAVSHIPYD LONG BEACH CA//JJJ//                                                 

 NAVSHIPYD CHARLESTON SC//JJJ//                                                 

 NAVSHIPYD PEARL HARBOR HI//JJJ//                                               

 NAVSHIPYD PUGET SOUND WA//JJJ//                                                

 SUPSHIP PASCAGOULA MS//JJJ//                                                   

 SUPSHIP BATH ME//JJJ//                                                         

 SERVSCOLCOM ORLANDO FL//238//                                                  

 NAVUNSEAWARCEN DET NORFOLK VA//JJJ//                                           

 NAVSURFWARCEN ORDSTA LOUISVILLE KY//JJJ//                                      

 FTSCLANT NORFOLK VA//4244//                                                    

 FTSCPAC SAN DIEGO CA//211//                                                    

 FLETRACEN NORFOLK VA//JJJ//                                                    

 FLETRACEN SAN DIEGO CA//JJJ//                                                  

 FLETRACEN MAYPORT FL//JJJ//                                                    

 COMNAVSEASYSCOM WASHINGTON DC//00/09/91/91W//                                  

                                                                                

 BT                                                                             

                                                                                

 MSGID/GENADMIN/NAVSEASYSCOM/91W422/APR//                                       

                                                                                

 SUBJ/DDG51, CG47, DD963, DDG993, FFG7 CLASS ADVISORY,                          

 /MK 32 TORPEDO TUBES//                                                         

                                                                                

 REF/A/GENADMIN/NAVSEASYSCOM/070640ZFEB94//                                     

                                                                                

 AMPN/REQUESTED TYCOMS ADVISE SHIPS TO INCREASE MAX AIR FLASK PRESSURE          

 FROM 1500 TO 1600 PSI.//                                                       

 POC/R. CARMICHAEL/GM13/SEA 91W422/LOC:ARLINGTON VA                             

 /TEL:703-602-6699 X202/TEL:DSN 332-6436 X202//                                 

                                                                                

 RMKS/1. REF A PROMULGATED TO RESOLVE BARREL NOT READY CONDITION AND            

 IN ADDITION PROVIDE FIRING DATA TO NAVSEAWARCENDIV NEWPORT FOR                 

 EVALUATION.                                                                    

                                                                                

 2. DUE TO EXPIRATION OF REF A AND THE NEED FOR MORE FIRING DATA, REQ           

 TYCOMS ADVISE ALL SUBJ CLASS SHIPS WITH OR WITHOUT MK 50 CAPABILITY            

                                                                                

 TO INCREASE MAX AIR FLASK PRESSURE FROM 1500 TO 1600 PSI. THE 1600             

 PSI MAX AIR FLASK PRESSURE IS AUTHORIZED FOR ALL MK 32 SVTT FLEET              

 FIRINGS OF MK 46 AND MK 50 TORPEDOS AND EXERCISE SHOTS. THIS MSG               

 ALLOWS THE 100 PSI INCREASE FOR ALL FLEET FIRINGS WITH A TRIAL PERIOD          

 EXTENSION FOR ONE ADDITIONAL YEAR.                                             

                                                                                

 3. TO MONITOR EXERCISE TORPEDO MK 46 LAUNCHES AND ENSURE INCREASED             

 FLASK PRESSURE (1600 PSI) DOES NOT CAUSE INCREASED INCIDENTS OF                

 BROACHING DUE TO REDUCED WATER ENTRY ANGLE, REQ FIRING SHIPS PROVIDE           

 ALL FIRING DATA INCLUDING TUBE LAUNCH PRESSURE TO NAVUNSEAWARCENDIV            

 NEWPORT (CODE 8332).                                                           

                                                                                

 4. THIS ADVISORY WILL BE CANCELED WITHIN ONE YEAR.//                           

 UNQUOTE                                                                        

                                                                                

 BT