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Post Info TOPIC: Converting Hat (Ottoman Artillery pack) 105mm Le FH to Schnieder-Canet 120mm Howitzer


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Converting Hat (Ottoman Artillery pack) 105mm Le FH to Schnieder-Canet 120mm Howitzer
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These show how I have used the Krupp 105mm le FH model in the Ottoman Artillery & MGs pack (8094) to produce a Schneider-Canet 120mm Howitzer M1909 (other designations for armies on its introduction). This piece is used by WWI Russia as the 122mm M1910 (& is visually identical to the 122mm M10/30 used in WWII). The Schneider 120mm was used by Serbia (as M1911?), Bulgaria (M1912) & France (as M1915) & some others.

 These are to support a thread on the Hat forum WWI - Howitzers in 12cm - that we won't see but can make

 Here are the pictures with some relevant commentary (these are different from the thread process description for ease of photographs).

 Stage 1 Photo.  This is the Barrel etc moulding from Ottoman Artillery & MGs Pack.The 2 blue areas need to be cut off.
The Darkish Green strip needs to be trimmed back to flush with the underside curve of the retained barrel section (this trim goes covers the length coloured).
The white plastic parts are the sections to be added for the conversion.

 Stage 2 Photo. This is the Carriage etc.
The 2 blue areas need to be cut off.
The Red Dots show where the carriage & gun shield are drilled & pinned.
The Yellow Dots show where the small grey section cut from sprue is inserted into the box trail & glued.

 Stage 3 Photo. Part (mostly) completed.
Shows the carriage & shield joined but not yet closed & glued. The white spot in the box trail is the section to be added from Stage 2.

The Barrel Moulding has had the following done:
-         
The replacement front barrel section added.
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1 of the 2 forward sections of the twin circular recuperator forward sections added
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The Long & short under sections added to make the support for barrel & recuperators be the right shape & depth.
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The support tray for max recoil added under the back of the breech.
There is the side ½ round strip to be added (on this side) just below the barrel moulding. If you look carefully the channel for it has been cut.
After this the second of the 2 forward sections of the twin circular recuperator forward sections can be added. (this is the short piece of round rod).

 Stage 4 Photo. Completed Carriage & Barrel Mouldings.

 Stage 5 Photo. Completed Gun.

 

 Brennan



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Did a process statement as well - have learnt it is better for this to follow the pics rather than preceed. So here is that original process description. Hope it helps.

Brennan

WWI - Howitzers in 12cm - that we won't see but can make

Unfortunately I don't have a didgital camera - but am trying to get a mate to take pics to illustrate the discription below:

One of the most common "odd" weapons in WWI is the 12cm Howitzer & many of these are the Schneider-Canet / Cresout (1907 through 1915 depending who & date of introduction) including the great bulk of Russian 122mm QF pieces in WWI (this was the Schnieder 12cm license built in Russia & is visually identical).

Start with.

the 105mm le FH in the Ottoman Artillery & MG pack.

All changes, but 1, are to the gun barrel.

1. Trim off the front (slightly smaller) barrel section.
2.Trim the support section that extends forward from under the barrel - remove the approx 1.5mm that angles foward & down (also taking off the front 1.5mm approx of the existing recuporator.

3.This is the tricky bit. Trim the support section back so it is flush with Both the underside of the remaining barrel & the Rivet stiplings of the recuporator. This will create a channel either side approx 1.5mm high and 0.5mm to 0.75mm deep.

4. Into the channels made in 3. above fit a section of 1.5mm 1/2 round plastic ( I use Evergreen Strip Styrene) this fills the channel from the Breech to flush with the trimmed front (see 2.) of the old recuperator.

5. Cut two short sections of 1.5mm rod. Theses should be 4mm long (so I suggest cut the 5-6mm as you will need to trim carefull to get a 'vertical' cut - at least I always doing cutting this ****ed rod).

6. Next @#$%^&*! tricky section. Carefully glue the 2 trimmed sections of rod onto the forward section of the old recuperator so they are flush & contiguous with the sections of 1/2 round. I have found no other reliable way than care and paitence. The 2 sectoins will set slightly apart BUT MUST be level & straight. These now create the twin circular recuperators of the Schnieder in place of the single bigger rectangular section from Krupp.

7. Cut a section of 2.5mm rod bigg enough to extend from the remaining barrel stubb to just forward of the new twin recuperators. Again I recomend cut long & trim to get a vertical face for the muzzle & a fit with the barrel stub. The thicker the rod the more impossible (at least for me)a single verticle cut. Then glue this in place.

8. Take some 2.5mm 1/2 round & cut 2 sections - one short to go frm the breech end to the attachment pin, the other long to go from the pin all the way forward on the underside of the old recuperator. This should probably be a curved ended & truncated V shape but making this is ridiculously hard & looks little different from the 1/2 round. Glue these underneath.

9. Take another section of 1.5mm 1/2 round approx 8/9mm long & glue under the rear of the breech. Why, well Schneiders were long reciol weapons & had a support extension behind the breech to hold the barrel at max reciol.

10. Take a small rectangular section of sprue from the box (either end of the bit that links gyn shield to MG carriage will do) trim this to fix in the open part of the box trail, basically level with the 1st of bolt stipples on the trail. Then glue in place.

Now assemble choosing a suitable angle for the barrel.

I normally pin the Gun shield to carraige - in so doing lift it a mm or 2 to give a higher angle.

If the centre of the support extemsion (9.) is painted dark it looks more concave & thus more accurate.

Hope to have the pics soon.

Brennan


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Commander in Chief

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Excellent conversion job, Brennan.

And welcome to the Landships forum.

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Pat


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Brennan, it has been a while. I am sure others would be as happy as me for any further conversions of yours. Your postings were most inspiring. Regards, Pat

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