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Modeller Build Logs

M-12 155mm GMC

By Hans Haase
Started: Mar 1, 2007
Updated: Sep 2, 2007

The M-12 is, in allied terms, a somewhat rare vehicle. 100 of these self propelled artillery pieces were built in 1942 and 1943 for the purpose of training and were based on M3 medium tank chassis, with the then-standard M1917/M1918M1 155mm gun of French design. As the actual invasion of Europe got closer, it was decided that the standard 105mm M7 self-propelled howitzer may be too small for dealing with stronger fixed emplacements, and a number of M-12's were modernized and upgraded for combat use. These became the largest self-propelled US artillery deployed in Europe and saw heavy use throughout the European campaign.

Introduction Rounding up the Pieces How long is a drivetrain? Crew Compartment: Part 1 Nuts, Bolts and Plates Crew Compartment: Part 2 Suspension - Part 1 Crew Compartment: Part 3 Crew Compartment, finished Engine Compartment Upper hull attached, and some more goodies.... Suspension: Part 2 Hull, fast progress, almost done 155mm gun: Part 1 155mm Gun: Part 2 Ready for Paint! Base Colour Second color coat Adding the Stars Tracks 155mm Ammo Stowage Added and More Weathering An extra weld seam... Finished
[Discussion]

Nuts, Bolts and PlatesApr 21, 2007
Something that always nagged at me when I built "Bacchus" was that I never did add the interior bolt detail for the bogie units. The inside does have the nuts and bolts present, but at the time the interior was far too complex with too little visability to bother. But on the M12, the hatches are big enough and in the right spot to make it worth the effort.

To deal with a few issues at once, I opted to add the bolts to some .010 sheeting that will be glued into the hull sides. I initially made a pattern in some leftover resin sheet, that I used to mark and drill holes into the styrene, and added Grandt Line bolt heads.

Since I'm not sure if I need more stuff added to the sheets yet, I haven't glued them in and they are just tacked in here with some clay. I did four sheets total, two for the drivers compartment and two for the engine compartment. You can also see my sloppy handwriting that marks which one goes where.

The pattern isn't perfect, and I will need to putty the edges a bit, but it is better than a blank side to the hull, and it does cover up a big locating hole for the bogie units.


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