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Armor/AFV: Axis - WWII
Armor and ground forces of the Axis forces during World War II.
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Ardelt Waffentrager PAK 43 with interior
AlexStefan
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Equatorial Guinea
Joined: May 09, 2014
KitMaker: 54 posts
Armorama: 53 posts
Posted: Sunday, April 19, 2015 - 01:56 PM UTC
TRUMPETER 05550 8.8cm ADRDELT WAFFENTRÄGER PAK 43

Hi folks,

This will be a build log and, if people areinterested a discussion oard as to the internal fittings and structures of this tank.
I have begun work on the Trumperter 1/35 Waffentrager PAK 43 designed by Ardelt, which briefly saw action late in the war.

Footage is very limited, especially the interior and some important exterior parts, but the surviving one in Kubinka tank museum and some good photos will help with this project.


As of now, the following mistakes and errors in the kit came in mind:
Wrong placement of internat structures in the front:



After closer inspection, the next thing is that many parts of the Trumpeter kit are far too thick (especially the front roof parts,around the engine deck).


Also this double wall seems dubious and impractical, I removed it. The dirver probably had some levers or handles or so stored in the sponson?!?

Fixing the sponsons.

Roof interior view

Redesigned front... And started cutting away the next part behind the driver... Must be hatches to get to the gearbox (behind engine and driver) and the battery (behind the driver).



Secondly, the front fan slits are not molded nicely, so they needed to be redone.



Third in line, the engine and radiator covers are wrong (in terms of dimensions). Needed to be replaces as well.

This shows, by how much the leftmost hatch part was too big...

It will be kind of like this in the end.

This image shows the dimesions


Between the driver and the radiator, it seems that the wall is too long and wrong in dimensions as well, and too thick of course. So most of the front had to be reshaped...


As I wanted to depict all hatches movable and the interior visible, I added the fuel tanks and cut out the hatches/openings. I am not really aware if the mechanism or so, I have not found any footage, so this is based on other mechanisms used in German and Czech tanks.


These are different opening mechanism designs, changed it to a different one though. The depicted ones were ugly, not practicle in that location and I screwed them up.


Further to the back, the ammo rack need major changes to be done. I am not sure what Trumpeter has done, but the way they want the ammo to be stored, physics (shells can't be bend) does not allow the loader to get the shells out of the ammo rack
It is simply impossible.

It is already impossible to get rid of the top shell, the two lower rows are even further from imagination...It is almost more likely to travel with the speed of light than getting those shells out.




As a result, the whole part needs to be fixed. There must be some kind of spring mechanism, as soon as the top row was emptied, the bar holding the shell needed to be put to the side (with a swing and a spring mechanism) and thus the loader could reach the shells below...)
The floor boxed of the tiger had kind of such a mechanism.
I found no tank which had an ammo rack with so little space and limited possibilities of retrieving the ammo, so it is difficult to think of the design...
Help is appreciated.

Any input and comment is appreciated. Help and criticism is always welcome.

Cheers,
Alex
AlexStefan
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Equatorial Guinea
Joined: May 09, 2014
KitMaker: 54 posts
Armorama: 53 posts
Posted: Tuesday, April 21, 2015 - 11:13 PM UTC
Here is one of the sketches (found on some random Russian site), it would be nice if anyone could name or clarify the source.



If the sketch is correct (which must be, as there is no other way as to house transmission and engine and so in this thing), then I will need to scratch a few parts when the crankshaft and so will go around through the intermediary transmission...
I am no engineer, so this kind of knocks me out cold.

Doing some fitting tests... The sketches do seem to allow the proper installation of the engine.
From back to front


From the top.


And here is a preview of the engine. Adding oil pipes and fuel lines and wiring for now. This thing will sit underneath the elevated part besides the driver. I an assuming that there was a little riveted or bolted wall between the engine and the driver, but the gearbox with the "stick shift" must be just under or exempted from the wall. I wish I had studied Engineering, not Finance.



Mostly, the wiring will be based on the engines provided on the Fahrzeuge der Wehrmacht homepage, which is a great source in general, and further pictures found in books.

http://www.fahrzeuge-der-wehrmacht.de/Artikel/Motoren.html
I have split the transmission and gearbox already, as the drive shaft part will need to be in the very front.

Cheers, have a good evening, may Madrid lose tonight.
John_O
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Oost-Vlaanderen, Belgium
Joined: November 23, 2007
KitMaker: 569 posts
Armorama: 322 posts
Posted: Monday, April 27, 2015 - 12:38 AM UTC
That is one hell of a rebuild! Impressive. Won't be much left of the original kit the wat things are going. Good luck with the rest of your build!

John
AlexStefan
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Equatorial Guinea
Joined: May 09, 2014
KitMaker: 54 posts
Armorama: 53 posts
Posted: Tuesday, April 28, 2015 - 11:33 PM UTC
Thx, well, we shall see... Waiting for more photos and infos first.
AlexStefan
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Equatorial Guinea
Joined: May 09, 2014
KitMaker: 54 posts
Armorama: 53 posts
Posted: Wednesday, May 06, 2015 - 04:05 AM UTC
I have done some work on the dimensions of the Waffenträger.

All numbers are based on photo dimensions and on Trumpeters model as well as basic numeric data available.



The right hand side of the sketch is not completed and many details are yet missing, however it is a beginning.

Enjoy
 _GOTOTOP