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dertien · 01-12-07, 08:23 AM

Hello Reece,

I had a look at your tutorial and it's complete but I have some remarks, if you don't mind.

Aob is superbly documented. but is it necessary?

I have this to say: I have found the method you use to determine speed, which is the stock way of determining speed in SH3 to be very inaccurate. That's why I moved to Wazoo's way of determining speed.

You can determine speed in a number of different ways, which IMHO is the most important figure you need to get torps on target, together whith the bearing , while AOB can be pretty much guesstimated.

I don't think you will have the time to compute with pinpoint accuracy different target's AOB's when in a convoy.

Furthermore Dönitz instructed his men (if possible) to fire at a target within 600 m range, and with an AOB of approximately 90° Stb or Pt, as the torpedo detonation pistols were very unreliable at the time.

Now to guestimate the AoB:

Imagine the AoB dial with the point of the needle towards the 'zero' as the bow of the ship you're targeting and then turn the needle as how a person on the targeted ship would see your U-boat, then you have a pretty good guesstimate using your reference manual, how many degrees you should input there without having to do lengthy calculations per ship. I have tried this again and again and again, It's not a disaster if the AoB is not completely accurate. I say again: Speed and Bearing are very important.

Now consider you input beforehand the data you can influence yourself, such as Aob (you can set up your boat in order to have a 90 ° AoB on the target) and data you can look up in the reference manual, such as draft (depth of target in the water), then you know which things you can input without needing to calculate, so you can concentrate on more pressing matters at hand such as speed calculation.
Bearing can also be set to 0, remember that there will be errors, the further you offset your bearing needle to port or starboard. Zero bearing, (meaning the torp doesn't describe an arc but goes straight to the target) is still the best bearing you can have.

As for speed

There are different methods available:

Wazoos

and a very nice one by

Dimitrius

and as you said übung ist das halbe leben.

01-12-07, 08:23 AM	#2
dertien Lieutenant Join Date: Apr 2005 Location: Antwerp Belgium Posts: 259 Downloads: 130 Uploads: 0	Hello Reece, I had a look at your tutorial and it's complete but I have some remarks, if you don't mind. Aob is superbly documented. but is it necessary? I have this to say: I have found the method you use to determine speed, which is the stock way of determining speed in SH3 to be very inaccurate. That's why I moved to Wazoo's way of determining speed. You can determine speed in a number of different ways, which IMHO is the most important figure you need to get torps on target, together whith the bearing , while AOB can be pretty much guesstimated. I don't think you will have the time to compute with pinpoint accuracy different target's AOB's when in a convoy. Furthermore Dönitz instructed his men (if possible) to fire at a target within 600 m range, and with an AOB of approximately 90° Stb or Pt, as the torpedo detonation pistols were very unreliable at the time. Now to guestimate the AoB: Imagine the AoB dial with the point of the needle towards the 'zero' as the bow of the ship you're targeting and then turn the needle as how a person on the targeted ship would see your U-boat, then you have a pretty good guesstimate using your reference manual, how many degrees you should input there without having to do lengthy calculations per ship. I have tried this again and again and again, It's not a disaster if the AoB is not completely accurate. I say again: Speed and Bearing are very important. Now consider you input beforehand the data you can influence yourself, such as Aob (you can set up your boat in order to have a 90 ° AoB on the target) and data you can look up in the reference manual, such as draft (depth of target in the water), then you know which things you can input without needing to calculate, so you can concentrate on more pressing matters at hand such as speed calculation. Bearing can also be set to 0, remember that there will be errors, the further you offset your bearing needle to port or starboard. Zero bearing, (meaning the torp doesn't describe an arc but goes straight to the target) is still the best bearing you can have. As for speed There are different methods available: Wazoos and a very nice one by Dimitrius and as you said übung ist das halbe leben. __________________ If you have an apple and I have an apple and we exchange apples then you and I will still each have one apple. But if you have an idea, and I have an idea and we exchange ideas each of us will have two ideas. G.B.Shaw