FROM: VADM. OZAWA. SOUTHERN FLEET HQ. ASW COMMAND. CAMRANH BAY.
TO : VADM. HOSOGAYA. 5TH FLEET HQ. OMINATO. HONSHU.
SUBJECT: CONVOYS HOKKAIDO-HONSHU.
DATE: DEC 7TH 1941
LIKE THREE DAYS WILL BE NECESARY USUALLY FO THE TRANSITS FROM HOKKAIDO PORTS TO TOKYO, ANOTHER TWO DAYS WOULD BE NECESARY FOR RESOURCE DOWNLOADS AND ANOTHER THREE DAYS FOR THE RETURNING TO HOKKAIDO PORTS, A TOTAL OF 8 DAYS / CYCLE IN TRANSIT WILL BE USED FOR EACH CONVOY.
HOKKAIDO PORTS HAVE A DAILY CARGO CAPACITY OF 128.000 TONS BUT IT´S ONLY NECESARY TO LOAD 34.600 TONS (THE RESOURCE SURPLUS OF HOKKAIDO). WITH 8 DAYS SAILING FOR THE SHIPPINGS, WE HAVE CONSIDERED TO HAVE ENOUGH SEA CARGO CAPACITY AT HOKKAIDO TO SENT THIS 34,000 TONS/DAILY. JAPANESE NAVY WILL NEED 272.000 TONS OF CARGO CAPACITY IN HOKKAIDO PORTS FOR A 1 DAILY CONVOY WITH 34,000 TONS TO TOKYO EACH DAY.
FOLLOWING SHIPS HAVE BEEN SELECTED TO BE BASED AT HOKKAIDO FOR THE CONVOYS TO HONSHU:
- DOCKED AT WAKKANAI:
2,495 TONS OF CAPACITY FREIGHTER "AYO MARU"
5,040 TONS OF CAPACITY FREIGHTERS "MIDORI MARU", "KINSYU MARU", "TAIBUN MARU", "SIKISAN MARU".
4,050 TONS OF CAPACITY FREIGHTERS "NISSHO MARU", "TAIGEN MARU".
3,860 TONS OF CAPACITY FREIGHTER "SANGETSU MARU".
1,856 TONS OF CAPACITY LIGHT FREIGHTER "TAKEGAWA MARU".
- DOCKED AT KUSHIRO:
2,495 TONS OF CAPACITY FREIGHTERS "TEMPEI MARU", "HORAI MARU".
3,241 TONS OF CAPACITY FREIGHTERS "ANSYU MARU", "KENSIN MARU", "MIKAGE MARU".
3,805 TONS OF CAPACITY FREIGHTERS "HEITO MARU", "RYUKO MARU".
5,040 TONS OF CAPACITY FREIGHTER "GYOKO MARU".
4,050 TONS OF CAPACITY FREIGHTER "KIYAMA MARU".
6,555 TONS OF CAPACITY FREIGHTER "NITTI MARU".
- DOCKED AT SAPPORO:
6,615 TONS OF CAPACITY FREIGHTER "DELAGOA MARU".
1,865 TONS OF CAPACITY LIGHT FREIGHTER "KENNICHI MARU".
3,860 TONS OF CAPACITY FREIGHTER "RYUYO MARU".
5,040 TONS OF CAPACITY FREIGHTER "MANTAI MARU", "CALCUTTA MARU".
- DOCKED AT MURORAN:
5,040 TONS OF CAPACITY FREIGHTERS "HITERU MARU", "TOTORI MARU", "RYOKA MARU".
3,860 TONS OF CAPACITY FREIGHTERS "KURETAKE MARU", "ZINZAN MARU".
2,495 TONS OF CAPACITY FREIGHTERS "JINSAI MARU", "DAINITI MARU".
3,805 TONS OF CAPACITY FREIGHTER "IKOMA MARU".
3,241 TONS OF CAPACITY FREIGHTER "MAGANE MARU".
- DOCKED AT HAKODATE:
1,695 TONS OF CAPACITY LIGHT FREIGHTER "TATSUHA MARU".
3,860 TONS OF CAPACITY FREIGHTER "HOHUKU MARU".
5,040 TONS OF CAPACITY FREIGHTERS "MANZYU MARU", "FRANCE MARU".
- DOCKED AT OMINATO (TO BE TRANSFEREDTO HAKODATE AT ONCE):
6,615 TONS OF CAPACITY FREIGHTER "WALES MARU".
6,555 TONS OF CAPACITY FREIGHTER "NISSAN MARU".
5,040 TONS OF CAPACITY FREIGHTERS "BENGAL MARU", "ITALY MARU", "KOKI MARU", "MURORAN MARU", "KENZAN MARU", "UOJA MARU", "SYUNKO MARU".
4,770 TONS OF CAPACITY FREIGHTER "CHICAGO MARU".
3,805 TONS OF CAPACITY FREIGHTER "OMI MARU"
3,241 TONS OF CAPACITY FREIGHTERS "TOKO MARU", "SANSHO MARU", "KINMO MARU", "KYOKUZAN MARU".
2,495 TONS OF CAPACITY FREIGHTER "LA PLATA MARU".
2,187 TONS OF CAPACITY LIGHT FREIGHTER "BATAVIA MARU".
1,865 TONS OF CAPACITY LIGHT FREIGHTER "SHINNEI MARU".
-DOCKED AT AOMORI (TO BE TRANSFERED TO HAKODATE AT ONCE):
5,040 TONS OF CAPACITY FREIGHTERS "BORNEO MARU", "CEYLON MARU", "SINGAPORE MARU", "TATUHA MARU".
4,050 TONS OF CAPACITY FREIGHTER "TATUHA MARU(2)".
2,495 TONS OF CAPACITY FREIGHTER "NITTIREN MARU"
2,187 TONS OF CAPACITY FREIGHTERS "SHINNA MARU", "MITSU MARU".
-DOCKED AT SENDAI (TO BE TRANSFERED TO SAPPORO AT ONCE):
5,040 TONS OF CAPACITY FREIGHTERS "UTIDE MARU", "RYUZAN MARU", "TAMAHOKO MARU".
ASW MEASSURES MUST BE TAKEN INMEDIATLY TO AVOID ENEMY SUBMARINE ACTIVITIES IN CONVOY TRANSITS. AIR GROUPS FROM 12ND AIR FLOTILLA WILL COVER THE TRANSIT OF OUR SHIPS TO HONSHU. MINELAY MEASSURES WILL BE TAKEN TO CLOSE THE NORTHERN-INNER SEA APPROACHES.
LONG LIVE TO EMPEROR!
END //
