For a 5-column convoy normally the fattest ship sails in column 2 and 4, normally row 2 and 3. If there is a light cruiser sailing along normally you'll find it in column 3 row 2.

I read somewhere that happens to be the way they organize convoy out of Halifax, historically correct so to say.

Best thing about the convoys is usually there are some big tonnage ships so if all works out correctly one can bag 20k tons with easy work, especially early in the war.

But i prefer finding the task forces with big warships. Sinking a renown class, or Southampton class just feels more satisfactory than piddly merchants. I dont even bother with passenger/cargo ships as it feels a bit sneaky to sink them. Anything smaller than a medium sized cargo i just deck gun if the weather permits and there are no escorts around. Save those torps for the biggies!

There is no singularly correct way to do this. I've seen different skippers go about it in various ways while achieving similar results. You will eventually develop your own style of attack. With that said, there are some tactics that most of us employ. Plotting a course to get ahead of the convoy is popular and it's because it let's you determine where and when the attack will occur. This is a great advantage. Once you're ahead of the convoy you have a lot of choices. There are times I will position the boat to attack from one of the flanks. I like this because it allows me to time my eels to penetrate the middle of the convoy and hit targets almost simultaneously. My personal method is to hit at least three large ships in the middle with one eel each. It rarely sinks them, but it slows them down and separates them from the convoy. That allows me to reload and feast at my leisure.

Another tactic (that I don't recommend unless you're experienced at evading persistent escorts) is to float quietly until you find yourself almost in the middle of the convoy. Now you have targets for your bow and stern tubes. This requires some on the fly, fast calculations. The targets are close, but moving and your 90° angles will evaporate quickly. Especially once you hit a target. The convoy will start to zig zag. That's another reason I like to hit multiple targets with one eel each. Once they realise you're there, all hell will break loose.

One tactic I sometimes use has caused some debate among "simmers". My skippers tend to be somewhat cavalier if you will. I position the boat ahead or on a flank of the convoy while surfaced and make sure I attract their attention. Once I start seeing shells hitting the water and escorts heading my way, I submerge to periscope depth. I determine the closest escort, plot a course to meet it bow to bow and steam ahead full. This may sound crazy, but the escort isn't expecting the boat to be steaming toward them. I let the escort come in nice and close, typically around 600 to 500m, and I let an eel loose on magnetic setting. I've gotten pretty good at getting successful hits with this. Still, sometimes I miss or the eel is a dud. When that happens, it's time to dance. A little foot work and I line up a stern shot as fast as I can. If you can't put the escort down quickly, you'll find your dance card fills up fast. If all goes well, I line the next closest escort up, rinse and repeat.

The debate here is some skippers argue that it's about tonnage and escorts don't carry supplies or weigh much. They also say boats weren't designed, nor are they suited to hunt escorts. That's all true. However; during the real war, the allies didn't have an endless supply of escorts like the game does. So in my war, I like to retire a few escorts.

Thanks for your ideas & suggestions guys!
I will give them a try.
So far what i been doing with decent results, is standard perpendicular stand still on the convoys path, choose two juicy targets, sink them and go 230 deep, FAST!

I originally had trouble because i wanted to try and shoot at 3 or 4 diferent ships in one attack, wich resulted in making hasty solutions, misses, etc.

Now i ONLY target two ships (sometimes only one), hit it, escape, shadow the convoy and strike again. I rinse & repeat untill i run out of torpedos, or the convoy has reached an innapropiate place (like shallow waters).

playing in real navigation and no contacts, you should use the tactic aviable for every time, becose its complex to have a good position.

I always try to get infront the convoy at 20 and rise into it in silent running, posible stoped. (i use the polish fix for ai sensor to make more real becose you are harder to hear by hydrophones but when they start to ping you are in the hell! This is more real becose they get hard to detect to into convoy if they dont see your periscope)

many times you dont get into, and have to atack by flank. in that case i attack only first raw until 90 to get more stright run torpedos and if i have time in night i could try to get more close ship in second raw. i wait first explotion and i go downquickly very slow. if theres scolts, i try to get on tail until go down. i prefer get 2 secure hit and not lose torpedoes, and when i rise after the hunt, serch bby hydro the hitted dhips to get they down if the inintial hit wasnt enought.

when im to late to get into a position for G7e TII, during day, i noly get to hit a destroyer and go down.

never attack a convoy in shalow waters nor heavy storm.