TO:                    COMSUBPAC, COMSUBASIATIC

FROM:             COMSUBRON 10A

SUBJECT:        MARCH 01 CYCLE 1 REPORT.

                         APRIL - MAY 1942

ASSIGNED AS CO OF TF-42 OPERATING OUT OF BRISBANE WITH THE 6 S-BOATS

DISPATCHED FROM COCO SOLO C.Z. AND AS-13 GRIFFIN FOR SUPPORT.

THREE OF THE S-BOATS USED MANUAL TDC, SS-154 (S-43), SS-155 (S-44) AND

SS-158 (S-47) ALL OTHER BOATS USED AUTO-TDC

ALL BOATS OPERATED IN THE SOLOMONS WITH A PRIMARY AND A SECONDARY

ZONE ASSIGNED FROM THE SOLOMONS CHART AS INDICATED.

SHIP ACTIVITY WAS HEAVY AROUND BOUGAINVILLE AND LIGHT IN THE SLOT AND

TO THE SOUTH AND EAST SIDES OF THE PATROL ZONE.

0 WARSHIPS

2 MERCHANTS 12200 GROSS TONS 4065 ADJUSTED TONS

SS-153 S-42 - SI-1 - ON STATION 4/1 - 4/11

0 WARSHIPS

6 MERCHANTS 44490 GROSS TONS 14830 ADJUSTED TONS

SS-154 S-43 - SI-2 - ON STATION 4/2 - 4/21

0 WARSHIPS

1 MERCHANT 3350 GROSS TONS 3350 ADJUSTED TONS

SS-155 S-44 - SI-6 AND SI-5 - ON STATION 4/6 - 5/10

0 WARSHIPS (CL - KUMA CLASS DAMAGED)

1 MERCHANT 1790 GROSS TONS 1790 ADJUSTED TONS

SS-156 S-45 - SI-4 AND SI-6 - ON STATION 5/3 - 5/22

1 WARSHIP 5832 GROSS TONS 1944 ADJUSTED TONS CL - KUMA CLASS

0 MERCHANTS

SS-157 S-46 - SI-7 AND SI-1 - returned to base CO emergency.

0 WARSHIPS

0 MERCHANTS

SS-158 S-47 - SI-3 AND SI-2 - ON STATION 4/4 - 4/18

0 WARSHIPS (2 DD'S FOR 3840 TONS)

5 MERCHANTS 25,100 TONS 25,100 ADJUSTED TONS

SUBRON TOTALS

6 COMPLETED, 1 CANCELLED - DAMAGE TO SHIPS AS FOLLOWS

SS-199 NO DAMAGE

SS-153 NO DAMAGE

SS-154 NO DAMAGE

SS-155 NO DAMAGE

SS-156 RADIO & HYDROPHONES DESTROYED HULL LIGHT DAMAGE 5 DAYS REPAIR

SS-157 NO DAMAGE

SUBRON 10A DAMAGE INFLICTED ON THE ENEMY

1 WARSHIPS 5832 GROSS TONS 1944 ADJUSTED TONS CL

(2 DD 3840 GROSS TONS 3840 ADJUSTED TONS NOT INCLUDED IN TOTALS)