Two Historical Firing Methods: Ausdampfverfahren and Auswanderungsverfahren

[derstosstrupp]

Originally Posted by Magic1111

@ derstosstrupp

Is it possible that you post all three posts in german words too? You are a german speaker, or?

For me it's too much English text to understand....

Gruß Magic,

Kann ich! Deutsch ist für mich Zweitsprache, habe ich als Kind gelernt. Das sollte mich aber nicht daran hindern, das alles zu übersetzen. Wird flott gehen, wenn ich mal Zeit habe. Das kann ich auf jeden Fall diese Woche machen.

Gute Idee! Würde doch ein Verbrechen sein, diese Methoden deutschen Gehirnen geheim zu halten, da sie schließlich auf deutsche Gehirne zurückzuführen sind!

[Magic1111]

Originally Posted by derstosstrupp

...
Gute Idee! Würde doch ein Verbrechen sein, diese Methoden deutschen Gehirnen geheim zu halten, da sie schließlich auf deutsche Gehirne zurückzuführen sind!

Vielen Dank, freue mich sehr!

[Magic1111]

Again @ derstosstrupp

Maybe you can post the german words manual here in the german subforum:

http://www.subsim.com/radioroom/forumdisplay.php?f=252

[derstosstrupp]

Auf Deutsch stehen die obigen Verfahren jetzt auch zur Verfügung!

http://www.subsim.com/radioroom/showthread.php?t=222400

[Pisces]

I tried to suggest this method (Ausdampfverfahren) in the 80-10 rule thread that went sour years ago, or atleast something like it:

http://www.subsim.com/radioroom/show...72&postcount=5

I'm glad to know the Germans actually had this as a valid tactic and had a name for it.

[derstosstrupp]

Originally Posted by Pisces

I tried to suggest this method (Ausdampfverfahren) in the 80-10 rule thread that went sour years ago, or atleast something like it:

http://www.subsim.com/radioroom/show...72&postcount=5

I'm glad to know the Germans actually had this as a valid tactic and had a name for it.

I remember that thread. It was.......epic. Everything that could go wrong did go wrong.

[Fahnenbohn]

Would it be possible to make a video for each method, please ?

[Magic1111]

Originally Posted by derstosstrupp

Auf Deutsch stehen die obigen Verfahren jetzt auch zur Verfügung!

http://www.subsim.com/radioroom/showthread.php?t=222400

Wonderful, many thx!!!

[Hitman]

Fantastic tutorial

A video would be the icing on the cake for new skippers, but what you did already warrants a Ritterkreuz. Salute!!!

[derstosstrupp]

All,

I have posted video demonstrations of the Ausdampfverfahren and Auswanderungsverfahren, see links at bottom of second and third posts.

[Tycho]

How to calculate Ausdampfverfahren with my DR Slide Rule mod!

Place your speed under 90°, read target speed for the TDC opposite to target bearing.

First example from derstosstrupp video:
3.5 x sin(69.5°) = 3.2783


Second example from derstosstrupp video:
4.2 x sin(54°) = 3.3978

[sublynx]

Thanks Tycho, I wouldn't have figured that out by myself, I would have just wasted time picking up a calculator, when all I really need is one click to slide out your slide rule, and one sliding movement to match my speed with 90 degrees. Then I just look what the result is.

Doing this with a calculator would have required me to push a calculator button 10 times AND getting my eyes off the game. The slide rule way is 5 times less the work and unhindered concentration on the game

[derstosstrupp]

Originally Posted by Tycho

How to calculate Ausdampfverfahren with my DR Slide Rule mod!

Place your speed under 90°, read target speed for the TDC opposite to target bearing.

First example from derstosstrupp video:
3.5 x sin(69.5°) = 3.2783


Second example from derstosstrupp video:
4.2 x sin(54°) = 3.3978

Tycho,

This is outstanding. I've added this to my game. "Target speed" for both Ausdampfverfahren and Auswanderungsverfahren can be computed using this, and, as sublynx said, no need to get eyes off game.

Well done!

[makman94]

hello Derstosstrupp,
I was looking at these two presentations and i want to ask you something


at this point of first presentation, i think that i am missing it.

Originally Posted by derstosstrupp

......
Step 4:
Set up TDC for the shot.
1. With scope pointed at the target (collision bearing you’ve been hopefully maintaining), set AOB in TDC to 90 starboard or port based on the direction of the target’s bow.

How do you know that, at this bearing (collision bearing you’ve been maintaining), the AoB is always 90° ?

Look at the following pic (the spoken AoB at this bearing can be anything else):



how can be ignored the above and consider the AoB to be always at 90° at this bearing? what am i missing here ?



ps: Therefore, for calculate target speed:

target speed = [Own speed / sin(AoB)] x sin(target bearing)

Originally Posted by derstosstrupp

.....
Step 4:
With scope pointed at (b2), set AOB in TDC to 90 starboard or port based on the direction of the target’s bow.
....

Same question for the second presentation

[derstosstrupp]

Hi Makman,

This post is back when I was using these methods as shooting methods, that is, to derive a gyro angle. I now use these methods to derive target speed (see my stuff in my sig as well as this that I made for Wolfpack https://drive.google.com/file/d/1isf...w?usp=drivesdk. That is a more evolved way of using the methods and is more in line with historical procedures.

To your question, the setting of 90 is simply for simplicity’s sake. Setting 90 allows you to set the target speed = own speed in the TDC, that’s all. Since the formula is

own speed x sine(brg) / sine(AOB) = target speed,

Then setting TDC speed to equal own speed yields the same result since the sine of 90 is 1.

Again, antiquated method and superseded by my subsequent stuff.