CG-47 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