TO: Submarine Commanders / SubRon 4A FROM: ComSubPac / ComSubRon 4A, (CMDR Greg Turner
II) DATE: February 1943 SUBJECT: Mission Orders (Cycle 6 August 2002) RMKS: 1 As your are aware, with the death of the late Rear Admiral
Robert English, I have been appointed to replace him as Commander Submarines
Pacific Fleet. I will look forward to working with all of you
RMKS: 2 ONI, FRUMEL has suffered a severe setback of their
code-breaking operations. On 29 January the New Zealand corvettes H.M.S. Kiwi
and H.M.S. Moa, operating in the Guadalcanal area, intercepted the IJN
submarine I-1. The submarine was loaded with Japanese code books. The Kiwi and
Moa cornered and rammed the I-1 and drove her ashore in a sinking condition.
Some of the crew and burned some of the code books, but many were left on the
hulk. Unfortunately some of the crew escaped capture and made it to Rabal and
reported the loss of the books and possible capture by allied forces. The
Japanese have altered their coding procedures and issued new code books. There
for the intelligence information regarding ship movements is minimal. RMKS: 3 Premature explosions and dud torpedoes continue to be a
baffling issue. I am not however convinced that the fault lies in the Magnetic
Exploder. While many commanders that the device should be deactivated in favor
of contact hits, commanding officers are ordered to employ the magnetic
exploder during all attacks on the enemy. RMKS: 4 SubSoWesPac is pursuing the development of an advanced base,
code named Potshot in the Exmouth Gulf on the Northwest coast of Australia
where the tender Pelias will be stationed. This is expected to reduce, by 1000
miles, the distance that our submarines will have to traverse to reach their
patrol areas. RMKS: 5 All commanders are to be maximum alert when attacking
unescorted merchants. One of our boats attacked a lone merchant last month only
to find it to be an armed Q-ship. This Q-ship fired on our boat and than
dropped several patterns of depth charges which caused extensive minor damage
to the boat. "KEEP ALERT" RMKS: 6 SubRons are assigned to the following areas of operation: SubRon 1M PacFlt Mariana Islands (special mission) SoWesPac Sulu Sea SubRon 2M PacFlt Palau Islands SoWesPac Java S SubRon 3A PacFlt Empire (Southern Japan) SoWesPac South China Sea SubRon
4A ~ PacFlt - Aleutian Islands CMDR Turner II, USS
Gato (Aleutians AL-1 April 43 - May 43)
LCDR Cox, USS
Swordfish (Aleutians AL-1 May 43) LCDR Gundersen, USS Pogy
(Aleutians AL-2 March 43 - April 43) LCDR Bearden II, USS Trigger
(Aleutians AL-1 March 43 - April 43) LCDR Doyle, USS Steelhead
(Aleutians AL-2 April 43 - May 43) SubSoWesPac Solomon Islands LCDR Edwards, USS Growler (Solomon Islands SI-1+2 March 43 May 43) LCDR Schow II, USS Greenling (Solomon Islands SI-3+4 March 43 -
May43) SubRon 5A PacFlt Caroline Islands SoWesPac Philippine Islands SubRon 6A PacFlt Empire (Northern Japan) (special mission) SoWesPac Indochina SubRon 7A PacFlt Yellow Sea SoWesPac Malaysia (special mission) SubRon 8A PacFlt Formosa SoWesPac TF-42 (Solomons) (special mission) COMMENTS: All
Boats going to the Solomon Islands will be under operational control of Task
Force 42. All commanders are
to Acknowledge receipt of these orders. Good Hunting and Gods Speed CMDR. GregTurner II Good Luck and Good Hunting Rear Admiral Charles A. Lockwood Commanding SubPacFlt // SENDS //
CO SubRon 4A