325 nm would put you closer to that Riau Island than to where I'm guessing you were, which would be the Balabac Strait maybe, after crossing the Sulu Sea and coming into the South China Sea?? The Strait is labeled, but you have to be at the proper zoom level on the map.
Overall image of the South China Sea, Palawan to the upper right, Singapore to the lower left, French Indo-China toward the upper left...
The Mission Editor showing one of two or three zoom levels that will show the Balabac Strait text. Zoom further in and it "disappears" so as to not "hide" ships underneath the text
You are nearing the end of the 44a layer, getting ready to head into the "no targets" time frame, but there are two "Task Forces" that go through the Balabac, one each direction, but they would both have at least one light cruiser(Leader) and probably one Heavy, along with the escorts, which would vary in type. Which direction was the group traveling? The TF101 traveling east & north has a tanker 100% of the time, but has those CA & CL, along with 4 regular DD, only has 1DE chance, and no torpedo boats. There are no Hunter/Killer groups anywhere near the area... None of the Merchant traffic comes close in Rostering. My primary suspect for now is Convoy 117, which has up to 3 tankers at 100%, 90% & 60% of the time. It can have 2 generic freighters at 70 & 50%, and then escorts as 2x DE 100 & 60%, 2x Corvettes at 90 & 25% and 2xFrigates (the Chidori etc) at 74 & 51% chances... The group can do a top speed of 12knots, and does 9 knots eastbound into the Balabac Strait, with a hard move to starboard and 7 knots a bit after clearing the strait. Combine that with your torpedo attack and them being single file at 816m spacing and the escorts cutting in and out of the tanker's path like they usually do, and that could have been part of the issue. I see no reason for the Kaibokan being light in the skirts, unless they tried to run over the little barrier island while leaving Brunei Bay... I dunno. I'll do a couple of test missions there tomorrow though and see what I see. Thanks for the details!
