Good you have a better feeling of what went wrong. I do think there was some confusion in this thread. (solving that by opening up another thread doesn't help, but OLC allready touched upon that subject ;) ) Because all those angle are of a relative nature it is important to tell exactly how you approach the target (his course, your course) AND are facing him (bearing to target, what AOB does he show). Giving too much information is allways the best.

:up:

Yes,I AM sorry for opening a new thread :nope:
Well,thanks to all concerned,in throwing light on this subject.
Lets hope it doesnt happen again,or i'm gonna throw them bloody electrics overboard,and load the torpedo men inside instead! Really,I think once I have become accustomed to the slow speed I will be using them as default,especially against convoys.I can't afford to make a single mistake against them now.

:salute:

Well Paul, I, for one, am glad you asked all these questions in this and the other thread, because I learned something from it!

I expect you will continue to have more misses with electrics than with fast steamers. A fast torpedo is more forgiving of an error in calulating target's speed.

For a fast torpedo, a one knot error in measuring speed, will result in a torpedo course error of just over one degree. For a slow torpedo, the course error would be nearly two degrees.

At ranges around 500m, an error of one degree on torpedo course results in a miss from aiming point of about 43m. Given the lenght of our preferred targets, this will still often result in a hit. An error of 2 degrees or more will most often result in a miss.

I love the steamers personally,because as you say,they are more forgiving of errors,yet as the war grinds on its becoming ever more important to conceal your presence and position,and the steamers betray both.
I am looking forward to new developments with the electrics,mainly with speed improvements.When do they become available?

Remember, if he gyro angle is zero, then the range to the target is irrelevant. As long as you know the target's speed and use a pre-determined AOB, then it doesn't matter if the target is at 2,000 meters or 20,000 meters, the lead angle will be the same.

Just determine what the target's AOB will be when it reaches a relative bearing of 000, enter that into the TDC with the periscope pointed at bearing 000, then enter the target's speed, then go auto TDC and rotate the periscope until the gyro angle reads 000. Leave the range dial set to any value you like, it doesn't matter. Fire when the target crosses the wire. Done.

Sorry, the electrics don't get any faster later on.

You'll start seeing the option of spending renown for TIII's near the end of 1942. You'll see a few start appearing for loading onto your U-Boat around then and the number available will increase.
IIRC by mid 1943, they're pretty much your standard loadout and some pattern runners become available.

As RoaldLarsen stated, electrics stay at the same speed throughout-30kts.

:)

I dont know where I got the impression that the ETs got faster,must have confused it with something else

Thanks anyway for warning me.