Author Topic: Tores mailbox VIIC and VIIC/41 operation and technical details  (Read 277926 times)

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Offline dougie47

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3825 on: 09 Dec , 2017, 05:22 »
Hi Don,

Thanks for the update. I'm keeping my fingers crossed for you.

Cheers,

Dougie

Offline Don Prince

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3826 on: 11 Dec , 2017, 03:16 »
Hello Mr. Tore and All,


I am up to page 409 on my proof reading.  That doesn't mean it's all exactly correct in all cases...  Simon just found an error back on page 42! I had the top of the Q Tank drawn with a high ridge which only applies to FBT 2 and FBT 4. I corrected the drawing error and added the round flowing tank top.


I uploaded the latest version of Skizzenbuch to my Dropbox folder...


Regards,
Don_
A man’s got to know his limitations…
Harry Callahan, SFPD

Offline David83

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3827 on: 16 Dec , 2017, 10:01 »
Maybe this helps too i found this picture in an Book its of building U238
Exhaust outlet can be seeing very good it has another flange in the ground part .

br David

Offline Don Prince

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3828 on: 20 Dec , 2017, 01:08 »
Merry Christmas and Happy New Year - May next year bring all joy and happiness and friendships that last forever...


Kind regards,
Don and Maureen Prince
A man’s got to know his limitations…
Harry Callahan, SFPD

Offline bianco64squalo

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3829 on: 20 Dec , 2017, 03:57 »
Thanks Don and wife.....many wishes from Padova, Italy....

Offline VIC20

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3830 on: 20 Dec , 2017, 06:05 »
Merry Christmas

Offline Don Prince

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3831 on: 22 Dec , 2017, 03:07 »
Hello Mr. Tore and All,


I have completed my reviewed and corrected Skizzenbuch and posted the latest version into Dropbox...  I also posted the latest images in the "Files Folder"...


Regards,
Don_
« Last Edit: 23 Dec , 2017, 03:43 by Don Prince »
A man’s got to know his limitations…
Harry Callahan, SFPD

Offline Don Prince

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3832 on: 07 Feb , 2018, 21:05 »
Hello Mr. Tore and All,


I have had several email exchanges with Mr. Tore over the past few weeks and have learned quite a bit about the setup and procedures for starting the Diesel engines and would like to pass-on the knowledge...

*********************************************************************************************************************************************

The training manual on the uboatarchive.net website that was provided by me (Don) and translated by Maciek only has only one mention of a flywheel.  This is on a page that has a drawing of the drive train...  The flywheel is on the back side of the crank shaft near the operating panel and it does not look to be a huge mass???

With your help, I'm beginning to understand that the main clutch is already engaged with the diesel engine during startup. This is a new concept to me, as I was concerned about starting the diesel engine on compressed air and getting the required RPM with the added mass of the clutch and the e-motor armatures during a compressed air starting procedure! This configuration will relieve the main diesel clutch of any undue friction on the clutch cones during startup; the cultch and dual e-motor armatures contribute to the mass as a flywheel to balance out any vibration (virtually a flywheel on both sides of the crankshaft).

1.  So, it looks like the main clutch on the diesel engine side will not get the initial friction load like I was considering during startup and coming online with the prop. However, it now looks like the clutch in back of the e-motors will take on that initial friction load when engaging the prop.  But, most of the masses on the drive line are already in motion, therefore the smaller mass of the aft drive shaft, the prop, and the water resistance to the prop spinning are not of a great concern (overall a much smaller mass for the e-motor clutch to handle).

2.  My take away from our discussions about the main clutch at the diesel engine is that this clutch is engaged before starting the diesel engine and disengaged after stopping the diesel engine. Therefore, the only variation would be a possible emergency manual clutch engagement or disengagement...

Regards,
Don_
« Last Edit: 07 Feb , 2018, 21:12 by Don Prince »
A man’s got to know his limitations…
Harry Callahan, SFPD

Offline Don Prince

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3833 on: 10 Feb , 2018, 01:24 »
Hello Mr. Tore and All,


I just uploaded the latest version of Skizzenbuch into Dropbox... I updated pages 420 through 422 covering the "Clutches."  Any comments will be appreciated.


Regards,
Don_
A man’s got to know his limitations…
Harry Callahan, SFPD

Offline Don Prince

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3834 on: 24 Feb , 2018, 22:49 »
Hello Mr. Tore,


Congratulation!!! Norway crushed the competition at the Winter Olympics in Soul South Korea with a medal count of 39, Germany came in a distant second with 31, then Canada with 29, and the USA with 23, and the Netherlands with 20.

This was the final count...

Regards,
Don_


« Last Edit: 26 Feb , 2018, 21:08 by Don Prince »
A man’s got to know his limitations…
Harry Callahan, SFPD

Offline VIC20

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3835 on: 24 Feb , 2018, 22:55 »
We still have to play ice hockey today.  :)

Offline Don Prince

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3836 on: 14 Mar , 2018, 03:43 »
Hello All,

I just got this email from Mr. Tore....


"Don I am currently in hospital for a stroke. In spite of my age I am hoping to be home after Easter if everything goes right.

Tore"

Let all keep Mr. Tore in our prayers and hope for a full recovery...
Regards,
Don_
A man’s got to know his limitations…
Harry Callahan, SFPD

Offline falo

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3837 on: 14 Mar , 2018, 09:20 »
Hi Don,


thanks for the information.


@Tore: Please get well soon.


Regards
falo

Offline dougie47

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3838 on: 14 Mar , 2018, 13:19 »
Hello Don,

Thanks for passing on the news. Please pass the warmest regards from all of us the next time you are in contact with him by email.

Cheers,

Dougie

Offline VIC20

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Re: Tores mailbox VIIC and VIIC/41 operation and technical details
« Reply #3839 on: 14 Mar , 2018, 15:59 »
Tore, get well soon.