1. The cannon projectiles don't have any drag. They do not follow a standard drag model- instead they follow a parabolic trajectory.

1. The cannon projectile diameter also does not affect drag at all, further providing the case for no drag on the projectiles.

2. The cannon projectile shape also does not affect the drag. (Slug v. Sphere - IRL this makes quite the difference, but not in SP.)

3. Cannon projectiles DO have mass. This can be seen by the fact that when weighing them on a spring scale they do affect it, and smaller diameter shells definitely weigh less than bigger ones (although I have yet to figure out the exact density of the projectiles). Here's a pile of shell:

1. As with any other projectile-type weapons, cannon projectiles do have a certain "trigger" velocity for their fuzes.

2. The muzzle flash effect applies only when the shell passes out of the barrel, for some reason... If the shell has a low enough velocity such that it just plops out of the cannon, the muzzle flash doesn't seem to show.

If you're not huge into XML, this information won't be of much importance to you... but for me at least, points 1, 2, 3, and 4 all have pretty big implications for an FCS system and some other physics calculations stuff. Very cool. I'm just putting this out there in the hopes that this helps someone out.

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