Heya Owly, I took her to my, proverbially speaking, Aberdeen proving grounds and assessed her as you requested. I can tell you put some real world thought into this design and I always appreciate that. The off-center main "cannon," the pintle mount gun on top, the sturdy looking skirting and armor - even the attempt to raise her weight artificially to that of a 13 ton tank were all great touches! There are a couple of matters that trouble this design though but for a couple of them you are not at fault for at all.

The first and the easiest problem to fix is the "hidden duplicate parts." At one time mirroring parts was pretty simple but at some point or other entire sections could be mirrored - even if parts of that section had already been mirrored separately. Take a look at the color images of your' tank. You notice how the main sections of skirting on the left side are a different color gray? You probably thought that was just the angle and light when in actuality there is a duplicate piece there inside the other ones. I found a few sections like this on that side of your' tank which explains partly why she pulls so hard to the left. You might want to give her a once over pulling off this part and that and then undoing it if there's no duplicate. Second, again not your' fault at all, is that the horsepower meter for these engines is all messed up. You put in two engines like a real panzer would have, gave 'em each decent horsepower for that weight class but at the current level of SimplePlanes' game mechanics, at least in this beta, its far too much. I reduced both to 50 HP and was still able to tool along at 75 mph once I got the build balanced and still had more than enough power to climb steep hills at 45-50 mph without a running start.

The angled piece of forward skirting, while good at disguising the fact that she doesn't have tracks, catches badly on uneven terrain since it's a hair lower than the foremost wheel. (I flipped like a VW Bug running squarely at the runway edge.) When I put her through her trials I removed some of the skirting that hung down over the sides. Since that's a design feature for your' build, I'd test her out and see if the skirting overall has to be given a Marilyn Monroe skirt lift. ;)

Which brings me back to balance. In building ships having weight added below the waterline or at least at the centerline on the ship gives it some vertical stability in a turn. On a vehicle that is the width of your' average sedan, addin