Anatomy of an Artillery Piece

Got it.

Moff there are a lot of good pictures online of the towed version. The gear, or quadrant looks to be on the left side of the gun on the end towards the breech, down low.

[quote HeavyArty] This will have gears and a handwheel attached to raise or lower it. 

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Are the gears usually semi-circular with the geared and curved side on bottom?

This particular one is mounted on a tracked carrier. It has a pedestal base (planned anyways) just the same as when it sat on it's earlier cruciform trails. That sits in something on the carrier like a turret ring, on which it rotates. It has some BIG hydropneumatic recoil absorbers, like a US 155. And sort of inadequate looking spades on the back. Thats one thing I would play with, Moff. The folks who did up the box art threw them on there all askew. On a big piece like that the spade is more like a bulldozer blade pointed the other way.

As noted, the barrel elevation is controlled by a big gear, the barrel slides on a subframe that has pintles and is fitted into a big base frame. For all the world it looks like a big naval deck gun off of the front of a U Boat.

I don't know how the kit is set up, but on an actual gun, there is a pivot point that allows for elevation and depression usually around the middle of the barrel.  This will have gears and a handwheel attached to raise or lower it.  For dirction, on smaller guns, you just reposition the front wheels and the tube direction to change its deflection.  On a larger gun, somewhere on the trails toward the front will also be a pivot point with gears and a handwheel to change deflection.  Hope that helps.