New kaleun; a few realism questions

[Aktungbby]

kaleidemiller!

[bstanko6]

This game is absolutely great for trial and error. Try out some weird angle shots and see what happens. Keep trying and learning!

[kaleidemiller]

Originally Posted by Aktungbby

kaleidemiller!

[Hooston]

I'm told by others on this forum that the Ujagd was not a uboat thing. It seems to be disappearing from recent supermods. However the basic technique of timing the target past a fixed point to get speed is valid. You really need to be more or less stationary or, at a pinch, moving directly towards the target to get a good answer.
To do the calculation you can either use one of the tools provided by various mods or simply double the target length in metres and divide by the time to pass a fixed point in seconds. This gives speed in knots since 1 knot=0.52m/s. When sober I can do the division to the nearest knot in my head.
Of course in real life it was unlikely you would know the target length as there were too many different ship types.

[John Pancoast]

Originally Posted by Hooston

I'm told by others on this forum that the Ujagd was not a uboat thing. It seems to be disappearing from recent supermods. However the basic technique of timing the target past a fixed point to get speed is valid. You really need to be more or less stationary or, at a pinch, moving directly towards the target to get a good answer.
To do the calculation you can either use one of the tools provided by various mods or simply double the target length in metres and divide by the time to pass a fixed point in seconds. This gives speed in knots since 1 knot=0.52m/s. When sober I can do the division to the nearest knot in my head.
Of course in real life it was unlikely you would know the target length as there were too many different ship types.

Iirc, the "going to stationary and timing the target" was not a historical method used, more of a game method.

But I can't recall exactly. Anyone else?

[Hooston]

The "stabilized azimuth line" on the periscope was indeed used for speed estimation.


http://www.tvre.org/en/stabilized-azimuth-line


Of course SH3 doesn't have this, but as the boat keeps an unrealistic very steady course the basic periscope markings can do the job provided you don't move the periscope and steer straight.


The site linked above gives you a lot more information than you would ever want about historical procedures! Someone put a LOT of effort in!

[Kal_Maximus_U669]

Originally Posted by Hooston

The "stabilized azimuth line" on the periscope was indeed used for speed estimation.


http://www.tvre.org/en/stabilized-azimuth-line


Of course SH3 doesn't have this, but as the boat keeps an unrealistic very steady course the basic periscope markings can do the job provided you don't move the periscope and steer straight.


The site linked above gives you a lot more information than you would ever want about historical procedures! Someone put a LOT of effort in!

Play in full realism in Fifi's NYGM in bad weather, let's talk again..!!
of course it remains a game... but in this mod the feeling is very well conveyed...
Negative buoyant..No Ujag.. No point.. no map attack.. no update cible... in Mod 4.4 NYGM Enhanced Hardcore « Steel Coffins edition »
Thank" s for documentation it' s interessant

[John Pancoast]

Originally Posted by Hooston

The "stabilized azimuth line" on the periscope was indeed used for speed estimation.


http://www.tvre.org/en/stabilized-azimuth-line


Of course SH3 doesn't have this, but as the boat keeps an unrealistic very steady course the basic periscope markings can do the job provided you don't move the periscope and steer straight.


The site linked above gives you a lot more information than you would ever want about historical procedures! Someone put a LOT of effort in!

I'm not talking about the stablized line as much as the stopping of the boat. Whether that was actually used in combat operations vs. pre-war sops. But I could just as easily be thinking of something else altogether.

And yes, I've had that site bookmarked for many years.

[derstosstrupp]

Stopping the boat underwater in real life near the enemy at periscope depth is a recipe for disaster. A U-boat needed momentum for effective depthkeeping. The exception is the trick of “hanging the boat by the scope”, which was more of a parlor trick, if anything, and possible only in very calm seas. Certainly not something to risk near the enemy.

Correct on U-Jagd. “U-Jagd” means ASW in German. This watch was for timing closure rates for attacking a submerged sub with depth charges. I happened on the MDv for U-Jäger vessels a couple years ago and the watch’s use is fairly well described there.