A question about Torpedo's

[griphin]

Hi all,

I am pretty new to SHIV but have been really enjoying the experience. Not to be overly confident I completed the career mode under the easy option to get used to the game and it's controls and while I would never say I am an ace submariner I was getting reasonable amount of kills. No biggy considering virtually everything is done for the player bar lining up and pressing the fire button.

So having completed the easy career I wanted to step up the game a little and went to 'normal'. I did want to have limits on fuel, battery oxygen and CO2 but it appears by selecting the normal option it basically limits your battery and CO2. Good way to find out what you can and cannot do under these circumstances.

Anyway getting to the point. The one thing I have been dealing with is torpedo's missing their targets. At first i thought it was me and studied ever aspect of the torpedo's course and despite the occasional dud .... count that as 4 in one attack scenario (was I miffed had no option to head for the thermal layer and sneak out of there), but I have noticed that the torpedo when fired would veer off to the left or the right depending on the targets bearing. This is without making any adjustment to the torpedo under settings on the attack scope. I monitored a couple of fired torpedos on a lone freighter and each time according to the attack map the torpedo seems to pass directly under the ship. I usually set merchant torpedo attacks to between 14-16 feet.

So now I am trying to make sense of the torpedo behaviour which seems to be related to the heading of the attack periscope. e.g attack scope gives a green light to fire when the target passes bearing 350 (my understanding was that the torpedo would fire straight out of the tubes and meet the target pretty much at the 0 Zero bearing but it appears the torpedo is turning the 10 degrees without me commanding it. Is this what happened. I never thought there was a correlation between the scope and the torpedo track.

So I guess my question is... is this torpedo track true to life or is something else happening with my installation?

I am just using SHIV no modes but I did run the update file.

I certainly hope someone can help. Thank you in advance.

Trying not to get that sinking feeling..

Richard

[Munchausen]

:hmmm: Is the torpedo solution still automatic in the "Normal" mode :06:

[SteamWake]

Early torpedoes espically Mk14's tend to run deeper than what you set them for.

Typically 10 feet deeper :03:

Regardles of manual or 'auto' targeting.

Set them shallow and you will have better results.

The torpedo turning is the gyro angle and is normal behaviour and is required to intercept the moving target.

All the green triangle is really telling you is that the shot is within 'acceptable' limits of the gyro offset. When in fact the torpedoes are quite capable of much greater offsets of up to 90 degrees and possibly more.

[griphin]

Thanks for the input... more confused now than before.

I reset my game to hard and now I am on manual targetting... took me by surprise I can tell you. Fortunately it was freight and I could use my deck gun. No convoy... that would have been a bad time to find out. I did a couple of test shots before departing Pearl and found the torpedos ran straight and true even with the attack scope pointing away at 10-15 degrees.

Thank you once again... Now... manual targetting where was the posting about that.

regards,

Richard.

[magic452]

First I would suggest that you go back to auto targeting till you understand how torpedos work.

For the most part you do not want to shoot straight out the front of the boat. Torpedos have a gyro to steer them to the target. They are supposed to turn. The course they takes is set up by the TDC (torpedo data computer)
the data from the TDC is than feed to the PK (position keeper) This updates the torpedo as to where it goes.

The TDC is the set of dials on the upper right in the periscope view.
The PK is on the upper left.

With auto targeting this is all done for you, you just point the periscope at the target and shoot when you get the little green arrow.

With manual targeting you must enter all data yourself into the TDC and than sent it to the PK
This data is target speed, AoB (angle on the bow), bearing and range.

It can be very complicated at first, that is why I suggest you stick with auto targeting for a time. Enjoy the game in normal mode and study up on manual targeting at your own pace.

Rockin Robbins has some very good tutorials posted at this link:
http://www.subsim.com/radioroom/showthread.php?t=146795
This link has a lot of good information for all kinds of stuff.

Magic

[griphin]

Many Thanks for the sound advice. I have been following the You Tube tutorials for the Solution Solver 1.3 only half way through. Dont get me wrong I enjoy these sort of complexities, being an avid flight simulation fan.

I will let you know when i crack it ;)

regards,

Richard

[magic452]

Griphin I guess didn't read you correctly before, sounds like you are already well into the game.

Using the solution solve is one of the times you do shoot straight out the front, zero gyro angle.

When you first load up the game all data in the TDC is set to 0 and you will shoot straight.

If you have used the TDC for another shot than you will need to reset to zero gyro angle. To do this:
set speed to 0 and send to PK.
set AoB to 0° and send to PK
set range to 1200 or so and put the periscope to 0° and send to PK.
To set range just pull the range triangle down far as it will go.

The solution solver is a neat little tool that is kind of fun to use.
Gutted put a lot of work into it and did a very nice job. :rock:
Once you get the hang of this tool it's very easy to use and very accurate as well.

Good luck and good hunting.

Magic