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Grayling (SS-2O9). March 1941. Only wartime change prior<br />
to loss was painting out of white ID numbers and name on<br />
stetn. National Arehiues Negatiue 79-N-28891.<br />
GRAYLING (SS.2O9)<br />
LCDR Roberi M Brinker. All 76 crew lost.<br />
Last Tlansmission Date: On 19 August Ig43 aftet<br />
departing FYemantle 30 July 1943 for eighth patrol.<br />
Successful completion 23 August 1943 delivering supplies<br />
at Pandan Bay, Panay, reported by guerilla forces.<br />
Loss Cause: Possibly rammed and sunk 9 September<br />
1943 west of Luzon, South China Sea, at unrecorded<br />
position, by Japanese transport Hokuan Maru.<br />
Supporting Euidence: Japanese claim Hokuan Maru<br />
detected submarine in shallow water and ran over spot of<br />
detection after increasing speed. A light shock was noted<br />
at the point ofimpact. Could not be contacted by radio on<br />
12 September 1943 and was probably lost by that time.<br />
Analysis: Reports that Grayling was torpedoed and sunk<br />
by Japanese submarine I-182 arc erroneous. I-182 was off<br />
the New Hebrides w}rrlle Grayling was operating off the<br />
Philippines.<br />
GRENADIEB (SS.21O)<br />
LCDR John A Fitzgerald. No casualties.<br />
Last Transrnission Date: Last transmission attempted 22<br />
April 1943 without success after departing Flemantle 20<br />
March 1943 for sixth patrol.<br />
Loss Cause: Scuttled 22 Apnl 1943 west of Lem Voalan<br />
Strait, in Puket Sea area, off Penang, Malaya, at about<br />
06', 3ryN, 97', 4AE, after being irreparably damaged 21<br />
April 1943 at about 0830hrs by one bomb from Japanese<br />
naval Nakajima attack bomber of 936th Air Group.<br />
Following initial attack, a further unsuccessful search<br />
was conducted by naval aircraft of936th Air Group and<br />
Army aircraft. Auxiliary gunboat Kosho Maru claims<br />
surfaced submarine was detected and pursued. Further<br />
attacked on morning of 22 Apil 1943 by single engine<br />
plane, probably Aichi DBA. The one bomb dropped, fell<br />
about 200 feet off starboard bow and caused no damage.<br />
Plane was hit by gunfire, oashed on landing, and killed<br />
the pilot. Japanese also claim auxiliary Choko Maru<br />
detected submarine immediately prior to scuttling and<br />
fired upon it.<br />
Analysis: Some published sources indicate that Japanese<br />
bomber dropped two 1000-pound bombs. Commanding<br />
Officer stated that Japanese captors told him that only<br />
one bomb of 500kg was dropped. The US War Damage<br />
Report no 58 dated 1 January 1949 stated that 'the<br />
severity and extent of the damage indicates that the<br />
weapon was probably a 250kg MK 2 anti-submarine depth<br />
bomb containing 317 pounds of type 98 explosive'.<br />
Grenndier (SS-21O). 27 December 1:94l at Portsmouth Navy<br />
Yard. As built, No further configuration changes prior to<br />
loss. National Archiuea Negatiue 19-N-26573<br />
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