Thermograph in Silent Hunter IV
 

Hi all. Having trouble finding the thermograph in Silent Hunter IV. I was under the distinct impression that it was an instrument that could be viewed in the game, and that I had actually found it at one time. Of course, that might be wishful thinking on my part.

Any help ? Thanks,
Nik Danjher

There was a themograph (bathythermograph) that you could actually view in the original SIlent Hunter. I've never seen it in SHIV. A voice calls out when you pass the thermocline and that's all.

Thanks Dread Knot. I thought for sure I'd seen somewhere in SHIV where it would note the actual thermocline depth, in addition to calling out "passing thermal layer".

If I remember correctly, if the bathythermograph was in the sub, you'd be able to view it by looking up and to the right from around the diving station/Christmas tree area. It would be great if you could view it, as you miss the "passing thermal layer" voice if you use time compression while diving. :(

http://www.snakeyez.us/photos/memori...80DSC05561.JPG

How do the Baythermographs work in real subs? I understand, or I can visualize the physics of a thermal layer in my head I just dont understand how they worked these things out using those instruments.

Well, check out the Wiki article on bathythermographs:

http://en.wikipedia.org/wiki/Bathythermograph

Here's a chart from the USS Drum's 9th war patrol:

http://www.drum228.org/warpatrol09.html#density

At a certain depth a large temperature change (thermocline) could be noticed if you watched the bathythermograph.

The photo I posted in my previous post is the bathythermograph in the USS Drum, and it's still showing the outside temperature today. :)

You can actually see it sometimes.
 

When scuba diving (especially in the Great Lakes) you can sometimes "see" a thermocline. Obviously I'm not talking submarine depths here but rather 35 feet or 60 feet or more depending on the conditions. It's hard to describe but it's kinda like a shimmery "current" and is one of those things that you see better if you don't look right at it (underwater "northern lights", LOL). There is also a noticeable change in temperature.
I suppose if you poured hot water into a large tub of cold water you'd briefly see the effect I'm trying vainly to describe.:-?