Why a Sugar boat? Wouldn't the red line pointing to 60 feet (periscope depth) on the fathometer indicate a larger fleet boat?
If that's the case, I'd turn inside the convoy... getting above the 2nd line of ships from the top and as close to them as possible... so I could unload the forward tubes on the 3rd line from the top and the aft tubes on the top line.
JD
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