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Dora 80cm K(E) Railway gun

All you need to know about Dora 80cm K(E) Railway gun from a scale modeler perspective.

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Category:Vehicles - Artillery
Used from:No range
Used by:

Hot products

1:72 80cm K(E) Railway Gun "Dora" (Hobby Boss 82911)
German
80cm K(E) Railway Gun "Dora"
Hobby Boss 1:72
82911
2010 | New tool
+
1:350 German Railroad gun DORA (BigBlueBoy BBB36002)
 
German Railroad gun DORA
BigBlueBoy 1:350
BBB36002
2017 | New tool
+
 

Products

Here are 5 products related to Dora 80cm K(E) Railway gun:

1:72 80cm K(E) Railway Gun "Dora" (Hobby Boss 82911)
German
80cm K(E) Railway Gun "Dora"
Hobby Boss 1:72
82911
2010 | New tool
+
1:350 German Railroad gun DORA (BigBlueBoy BBB36002)
 
German Railroad gun DORA
BigBlueBoy 1:350
BBB36002
2017 | New tool
+
1:72 Dora Rail Gun Metal Barrel (Blue Ridge Models BRM72002)
German
Dora Rail Gun Metal Barrel
Blue Ridge Models 1:72
BRM72002
2016 | New tool
+
1:350 Railway Gun 'Dora' (BigBlueBoy 36002)
German 80cm K(E)
Railway Gun 'Dora'
BigBlueBoy 1:350
36002
2015 | New tool
+
1:72 80cm K(E) Railway Gun Decals (Peddinghaus-Decals EP 2272)
 
80cm K(E) Railway Gun Decals
Peddinghaus-Decals 1:72
EP 2272
2010
+

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Treehugger added a new project.
Albums: 1 with 50 images
1:72
In progress
1:72 80cm K(E) Railway Gun "Dora" (Hobby Boss 82911)
 
17. December 2018 at 14:50:33 Share
Treehugger So.. I hear there are corrections to be made to this kit. I better hop to it. In the beginning, I will rely on the videos by "Nigel's modeling bench" on youtube, and then I will have a look for myself when I get a book I ordered. I think I will do some other changes to the barrel.

Disclaimer: I don't quite know how to best correct the Hobby Boss kit, but I will try.

So far: I ordered a pack of six separate metal rails of the type O gauge zink silver flat bottom rails (Peco IL-7FB), something in between the possibly over-sized rails and the most realistic sized rails, to try make the new metal rail fit to the plastic sleepers and other track parts. I ordered a book in German with lots of photos which will arrive later this week. I have started to investigate shortening the barrel and tweak all the wheels. I will try to fix the shape of the eight carriages if I can figure out how, or at least add some missing detailing with styrene. I will try add details to the breech, and more. I might attempt to correct the lower part of the main body if it makes any sense to me. The height of the hand railing is also something that is suspected to be a little wrong.
17. December 2018 at 15:08:20
Dave Flitton Time to write the definitive "Building the Dora in 1/72"
26. December 2018 at 20:21:36
Treehugger It is a nice thought, but that would be a lot of work. The important thing for me is to try figure out the basic stuff. Although all of this might look complicated, doing one thing at a time will eventually lead to completion. :) A little here and there and the kit would be done in no time.

The most important correction is probably the shortening of the barrel, and I thought it was a good idea to make this drawing to bring some sense to the chaos of all the different variables that make up the carriages and how it all looks.

I will probably find more things to fix and I will try mention them, but I don't think I will make some definite build guide, unless maybe I can try keep track of the changes I make.
26. December 2018 at 21:13:52
Treehugger Edited.. Heh, I will have to keep scratching my head about this.

Uuuh. Looking at proportions of a drawing and the kit, now suspect that the kit is ca 0.72 m too short in the middle in total. As if someone put a ruler across that one drawing in a book, and measured the bottom length, but failed to see that the two pages showing the drawing is shortened because of the way the two pages are put into the book. Hm, I think that would also explain why the kit seemed too tall. The drawing that is spanning two pages at the center, would show undistorted height, but a too-short length, because of the two page span.

Comparing the kit top, to the drawing in the book, I might get lucky, as it seems that the top part is proportional to that drawing. Unsure about the ass end of the top side.

This is so exciting! :D It is close to 03:30 in the middle of the night, time to go to bed.
30. December 2018 at 02:18:07
Treehugger I am discovering more things. I have good hope of making all of these changes. Top part of cannon, is not supposed to start at the front edge, but have an inset of about 5mm according to photos.

In sketch version 20, I have arranged the numerous hand wheels in sequence, and the spans in between the hand wheels was made equal. I added a third hand wheel where I once thought there were only two, and fortunately it made sense to also widen main shape by 5 mm, perhaps two fixes in one if I am a little lucky.

I think, if I turn out to be a little lucky here, if extending the main shape by 1 cm in total (0.72m in 1:1), I can perhaps just extend the big floor on rear top, by same amount.

Full png file: https://ibb.co/LZHdJMX (re-re-re-re-re-re-uploaded)

Note: The German book on railway cannons, on page 160-161, have a side view plan drawing, however this looks like a concept drawing, and not the real thing, so I don't trust the measurements given. Maybe just a related project.

Same drawing, but with the other half added to show the full length of the main shape.
https://ibb.co/P10fsT6

When switching over from Photoshop to GIMP (free) the transparency in the layers got messed up and pixels for antialised lines for the wheels got shifted. Have to clean that up later. Unsure if I want to re-work the wheel area on the carriages more, as it would probably require further changes to the kit parts, which may or may not be difficult.
30. December 2018 at 14:34:52
Treehugger Hrm..

So.. looking at the plan drawing on page 160-161 in that German book on Railway cannons, it is all too clear that this particular drawing is not the size of the Dora cannon. More like 81% of the Dora (or, some parts are). And clearly the shape of the top carriages look off on that drawing.

The tallest part of the ends of the main body that stretches between all the carriages, are clearly as tall as a human. When I convert the numbers given on the plan drawings in the book, that end, is merely about 81% of what was expected, and low compared to the height of a human figure, even if that human figure on the photo was as low as 160 cm tall, the end would be no taller than 160, around 155 cm.

At least the kit part on the ends, looks about the correct size, in simply assuming that the human figure is 183 cm tall.

I can't help wonder if photos possibly could have been be doctored, or if maybe they used oddly tall/low figures on some of the photos intentionally.

*shrugs*

The quest continues to try figure this all out.

I had to start making a larger drawing, to better get to draw those numerous hand wheels along the side of the main shape.
31. December 2018 at 13:05:59
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Lars Added a new review for:
1:72 80cm K(E) Railway Gun "Dora" (Hobby Boss 82911)
German
80cm K(E) Railway Gun "Dora"
Hobby Boss 1:72
82911
2010 | New tool
+
YouTube
Reviewed on channel
Panzer Modellbau alle Kategorien
04. December 2018 at 17:04:34 Share
Micah Marsh added a new project.
1:72
Ideas
1:72 80cm K(E) Railway Gun "Dora" (Hobby Boss 82911)
 
04. November 2018 at 14:02:34 Share
Jens Andrée added the Hobby Boss 80cm K(E) Railway Gun "Dora" (1:72) to his stash.
1:72 80cm K(E) Railway Gun "Dora" (Hobby Boss 82911)
German
80cm K(E) Railway Gun "Dora"
Hobby Boss 1:72
82911
2010 | New tool
+
16. November 2017 at 08:35:59 Share
Jens Andrée Ho ho ho! Merry Christmas to me, from me! :D
16. November 2017 at 08:36:28
Greg Baker And it's just your size too!
16. November 2017 at 08:40:18
Jens Andrée The more bonkers the better - and this must be the most überbonkers there is!!!
I can admit that I've been looking at the 1/35 scale version but apart from being rather expensive - it takes up a lot of space so it had to be the 1/72 scale instead - which is still a huge build!
16. November 2017 at 08:51:41
Treehugger Does this Dora railroad gun kit comes with figures? I would like to know. I suspect that there aren't any figures included. Haven't seen any in any of the reviews I've looked through.
22. October 2018 at 09:10:46
Jens Andrée No figures sadly. I've sourced figures elsewhere but I'm still looking for quite a few roles I'm missing and I suspect I'm going to have to do a lot of scratch building in this department...
I'll worry about the figures later though because this will be a huge diorama ;)
29. October 2018 at 12:07:23
Add a comment »
Daniel Reifer Added a new review for:
1:72 80cm K(E) Railway Gun "Dora" (Hobby Boss 82911)
German
80cm K(E) Railway Gun "Dora"
Hobby Boss 1:72
82911
2010 | New tool
+
YouTube
Reviewed on channel
Hugos Hobbies
17. January 2018 at 12:04:25 Share
Jens Andrée added a new project.
1:72
In progress
1:72 128mm Flak 40 (Modelcollect UA72094)1:72 80cm K(E) Railway Gun "Dora" (Hobby Boss 82911)1:72 Flakpanzer III "Wirbelwind" (MACO 7214)6+
 
22. November 2017 at 02:20:11 Share
View full thread with 13 comments
Derek Huggett Jens - Display cabinet? More like a small greenhouse or conservatory! :) I will park my mobile-home/camper van outside if that's okay!
07. December 2017 at 07:45:50
Jens Andrée Hahaha Derek! :D
You are probably correct because the base will almost be the size of a door, and some height is also required...
And of course you can park your camper van here! I could probably do with some help finishing this build ;)
07. December 2017 at 07:50:46
Wim van der Luijt count me in for this huge project too, how big is the gun in 1:72?
07. December 2017 at 10:32:05
Sebastian Meyner Big plans for a big gun! Looking forward to see it come together!

The display cabinet "German Style" but not IKEA?! Sorry Jens but these days IKEA could pass as "German Style"...trust me I'm German and we love IKEA :)

07. December 2017 at 10:40:23
Udo Browarczik Curiosity might kill the cat, but count me in.... Good luck!
07. December 2017 at 11:41:45
Jens Andrée I haven't built and measured the gun yet but the model is ~120 cm long so the gun should be almost 1 meter long!

I've got a surprise in store for the cabinet, hence the "German style" and not IKEA ;)

The plan is to build the type of diorama you see on a picture and think "I wish I had one of them" but secretly knowing it would be too big and possibly a bit silly, and that's why I'm doing it!
We're not getting any younger, not me anyway, so I'm going full bonkers and will have a lot of fun getting there! :D

Cheers for all of your kind and supportive comments!
07. December 2017 at 16:33:48
Sebastian Meyner Lots of luck for this monster. See you in about a year! ;)

Speaking of monsters...you put the other one (Entwicklungsserie...) on hold? Don't tell me I have to struggle alone on that on!
07. December 2017 at 17:02:03
Jens Andrée Sebastian, No, the Entwicklungsfahrzeug Sammlung is in full swing but I tend to have more than one build going on at the same time ;)
A few of the tanks in the Entwicklungsfahrzeug Sammlung are going to be built as group builds next year so I can't start them yet, but I've made good progress so far but just doing similar tanks, one after the other, gets boring - as will the Schwerer Gustavs 400 wheels or so to make, so that's why I'm starting this project at the same time!
I'm retired after an accident so modelling is pretty much all I do nowadays and that's why I can churn out so many models. At least I found one benefit of breaking my spine and pelvic bone!
I need to get better taking photos but the new modelling area is going to have better lights so taking photos should be much easier!
07. December 2017 at 18:13:09
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