Tores mailbox VIIC and VIIC/41 operation and technical details

[NZSnowman]

Thanks Tore. Its helping. Now only 1/2 lose

I have found all the pipes but this section in red, could it be internal part of the pump/engine?

[NZSnowman]

I will draw up a colour map of my piping layout today so you can double check my layout tomorrow.

[NZSnowman]

Here is my layout and the missing pipe I can not find

From that I can see from the drawing there are two inlets and two outlet for the CW pump

[tore]

Thanks Tore. Its helping. Now only 1/2 lose

I have found all the pipes but this section in red, could it be internal part of the pump/engine?

Simon
Part of the section could of course be intergrated in th pumps suction side, howewer we should be able to trace the valve. I`m still of the opinion that the pipe  on the previous shown exhaust manifold photo is leading down between the manifold and pressurehull and entering the suctionpipe via a valve the  somewhere down. The valve should be able to control from the floorplate hight. I`ll keep looking while it is your turn to go sleeping.
Tore

[tore]

Here is my layout and the missing pipe I can not find

From that I can see from the drawing there are two inlets and two outlet for the CW pump

Simon seems to be OK.  The valve "f" is a two way valve, either shut to the cooler or to the engine supply pipe. The pipe out from the cooler has an ordinary shut off valve both are fairly close and fitted at the top of the cooler.
Tore

[tore]

Simon.
One leap ahead.   On port side is a pipe ( yellow on the photo below) going vertically from below the exhaustmanifoldup to the top following the pressurehull all the way to starboard side where it enters the heatexchanger via a valve. I assume this must be the yellow pipe on the systemsketch below. Again I assume somewhere underneath the exhaustmanifold there would be a connection via  to the enginedrive coolingwaterpump via a valve.
Tore

[tore]

Simon additional photos to my last post.

[NZSnowman]

Thanks Tore. Its helping. Now only 1/2 lose

I have found all the pipes but this section in red, could it be internal part of the pump/engine?

Simon
Part of the section could of course be intergrated in th pumps suction side, howewer we should be able to trace the valve. I`m still of the opinion that the pipe  on the previous shown exhaust manifold photo is leading down between the manifold and pressurehull and entering the suctionpipe via a valve the  somewhere down. The valve should be able to control from the floorplate hight. I`ll keep looking while it is your turn to go sleeping.
Tore

Tore, were you able to find valve 'f'?

[tore]

Simon.
I have not found any valve on that part of the pipeline.May be it is intergrated in the pumpcasing, but anyhow we should be able to see the wheel handle. I`m still looking.
Tore

[NZSnowman]

Tore, this morning I was able to track/trace the outlets for the CW pump. The shape and the layout of the pipe suggest two outlets and two inlets for this pump.

[NZSnowman]

Simon.
One leap ahead.   On port side is a pipe ( yellow on the photo below) going vertically from below the exhaustmanifoldup to the top following the pressurehull all the way to starboard side where it enters the heatexchanger via a valve. I assume this must be the yellow pipe on the systemsketch below. Again I assume somewhere underneath the exhaustmanifold there would be a connection via  to the enginedrive coolingwaterpump via a valve.
Tore

Tore, is the heat exchanger in U-995 original German? As I have never seen anything like this in any war-time photo's.

[tore]

Simon
Colingwater outlets.
 The outlets looks fine to me
Tore

[tore]

Simon.
One leap ahead.   On port side is a pipe ( yellow on the photo below) going vertically from below the exhaustmanifold up to the top following the pressurehull all the way to starboard side where it enters the heatexchanger via a valve. I assume this must be the yellow pipe on the systemsketch below. Again I assume somewhere underneath the exhaustmanifold there would be a connection via  to the enginedrive cooling waterpump via a valve.
Tore

Tore, is the heat exchanger in U-995 original German? As I have never seen anything like this in any war-time photo's.

Simon.
One leap ahead.   On port side is a pipe ( yellow on the photo below) going vertically from below the exhaustmanifold up to the top following the pressurehull all the way to starboard side where it enters the heatexchanger via a valve. I assume this must be the yellow pipe on the systemsketch below. Again I assume somewhere underneath the exhaustmanifold there would be a connection via  to the enginedrive cooling waterpump via a valve.
Tore

Tore, is the heat exchanger in U-995 original German? As I have never seen anything like this in any war-time photo's.

Simon
Heathexchanger.
I believe it is the original. It is really a straight forward oldfashioned tube heatexchanger  not the modern plate exchanger used today.
Tore

[NZSnowman]

Very good Simon!
As far as I remember the floorplates were fixed by countersinked screws, I am no100 % sure. Anyhow the plates were fixed, imagine the rattling produced by loose plates.
Tore

"countersinked screws" would match the style the Germans used to fixed the metal cover on the deck. I can imagine the rattling produced by loose plates plus the noise of the plates jumping around while a depth charging would not be good

Also this morning I was able to work out the width of the floor in the forward part engine room from original German drawing Tore can you remember roughly how big a single floor plate was. Were they all the same size or different sizes? I imagine they were small enough for a single person to remove them or did it take two people to remove them?

[tore]

Simon
Floorplates.
I really can`t remember excactly, howewer I believe they were of different sizes but could be handled by one man.
Tore