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Modeller Build Logs

Ram OP

By Paul Roberts
Started: Oct 16, 2003
Updated: Apr 12, 2006

OK Here goes, my first BLOG. We'll all get to see how far I get and maybe it will encourage me to keep up my build pace.

As the title says, this will eventually be a Ram OP, which was the artillery observation post version of the Ram Cruiser tank. Over 80 of these were made in 1943 by Montreal Locomotive and they were built on the last version of the Ram Mk II chassis. This had all the mods introduced over the 2 year production run of the Ram tank.

While the gun tank versions of the Ram never saw combat service in that role, the OP was widely used by the self propelled artillery regiments attached to Canada's armoured divisions and army groups. With the removal of the main gun (a plain tube was welded on the outside to maintain appearances) and turret basket there was enough room inside for a crew of 6 which included the observers and operators for two No.19 radio sets. With the extra room and crew the OPs were highly prized by their regiments and further OPs were created on gun tank chassis at REME (RCEME?) depots in the UK. Like its cousin, the Sherman, the Ram was well suited to conversion to other uses and the OP was a perfect example of such a conversion.

Introduction Chapter 1 - Oh, the Choices, the Choices! Chapter 2 - Other Bits Needed... Chapter 3 - The Real Thing! Chapter 4 - The Hull Underway. Chapter 5 - Upper Hull Shape Chapter 6 - Lower Hull Chapter 7 - Turret Surgery Chapter 8 - Turret Surgery Chapter 9 - Differential Housing Detailing Chapter 10 - Hull Chapter 11 - Hull Stern Chapter 12 - Forward Hull Contours Chapter 13 - Back to the Drawing Board... Chapter 14 - Drawing Board Part 2 Chapter 15 - Hull Casting Chapter 17 - Hull Casting #2 Chapter 18 - Back in the saddle Chapter 19 - Turret Chapter 20 - Turrret sides - close up Chapter 21 - Ram Master Ready for Moulding
[Discussion]

Chapter 18 - Back in the saddleDec 30, 2005
After a very long hiatus, the Ram is back under construction.

The hull shape had to be modified slightly when it was discovered that the drawings in the Hunnicutt book are, apparently, a little off. The hull, built according tot he drawings, will not fit with the Italeri lower hull allowing for air cleaner clearance. I checked the drawings of the M4A1 hull and the Ram hull and discovered that the Ram hull drawing was about .060" too short compared to the dimensions listed in the back and the M4A1 and M3A1 drawings, which should have the same length. I know it's sacrilege, but there it is.

I added a strip to the front of the hull, faired it in and then added the turret ring and the driver's periscope. I have dry fit the Italeri lower hull with differential cover to this hull and it fits with just enough room for a set of Formations round air cleaners to fit "up the spout".


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