Using FAR too MANY torpedoes!!!

[gazpode_l]

During all of my gaming either in single missions or campaign, I'm using far too many torpedoes.
I had something going a couple of week's ago where id gotten lucky with some small tramp steamers and had sunk them using 1 torpedo.

Now it's taking me two to sink them and three or four to kill an medium cargo. (using GWX3 )

Can people give me some tips on the ideal situation for torpedoes, where to aim impact pistol types and also the best depths for magnetic ones.

I'VE LOST MY TOUCH!

[Iranon]

With impact torpedos, good places to hit them are under the smokestack (engine room) or slightly forward of it (fuel bunker, even better).
If you want to sink them by flooding rather than critical hits, I suggest hitting them close to bow or stern - bow in rough seas, stern in calm. A depth of around 3m should usually be fine, 4-5 for large ships. Draft -0.6m if you want to aim at the keel but I realy wouldn't recommend it in most cases, use magnetics for that.
Impact hits work most reliably at angles close to 90°.

For magnetic pistols, hit them amidships at draft +0.5m in calm and draft +0.8m in moderate seas. Angle on Bow isn't too important, but around 45% is good: the target presents enough of an... erm, target to not miss and the torpedo spends enough time under the ship to go off reliably.
There is no elegant solution for AoBs near 0 or 180° in rough weather.

Stick to the above and you should usually be able to sink most ships with 1 hit and the vast majority with 2.

[sergei]

Yep, pretty much what Iranon said.

I use impact pistols, set to 3 meters depth.
Ships over about 4000 tons get 2 eels from me. One aimed at the forward cargo hold. The other amidships, around the engine room.

9 times out of 10 this will take 'em down pretty quick
(10 minutes or less)

[Immelman]

I avoid the magnetic pistol even in the late war years, I find it unreliable I always go for impact shots. I like to go deep with my eels just to the point where the hull curvature starts to be pronounced. So depending on the ship's hull I act accordingly. If its a Large merchant for instance that if memory serves has keel below the waterline of 8.9 meters I shoot for 5.5m depth in calm seas and 4.5m in rough weather. There is nothing worst then seeing an eel set on impact sail right under the ship due to a heavy swell so make sure to allow for this worst case scenario. It is a large tanker that once again if memory serves has depth of 11.7 I shoot for 7.5 in calm seas and 6.5 in rough.

Like I said make sure not aim lower then where the curvature of the hull becomes pronounced i.e. for a large merchant do not shoot your eel at 7m depth. Odds are that the hull is to curved and the eel will bounce off without exploding.

I find that this maximizes the flooding, sinking ships faster and with less required hits.

[Threesixtyci]

Magnetic will kill just about every ship with a single torp, but I'd avoid it in rough seas. 1 meter lower than the hull depth is what I usually set them to.

[Platapus]

I use impact pistols only.

Generally I assign at least 1 torpedo for every 3000-4000 tons. However that is not taking into account duds.

I feel it is better to err on the side of using more torpedoes. It is better to sink ships with more torpedoes than to miss ships and save torpedoes.

Any target worth expending one torpedo is worth expending two.