Bishop Steiner, on 10 August 2015 - 12:21 PM, said:
Tanks carry more than just D-U. And since approximately 20 countries use DU ammo, out of 240, I'll let you do the math. Also since DU is self igniting, yes, one could still call it explosive.
But the DU anti tank round makes my argument for a Gauss Penetrator even better.
Dino Might, on 10 August 2015 - 02:02 PM, said:
This got way too long for me, but in defense of Stackpole (BWAHAHAHAHAHA)
Ok, seriously, though, for a gauss round to be spherical - the aerodynamics are the big problem. You put any spin on it not perpendicular to path of travel and you are missing your target by a HUGE amount. You can't do rifling, because you'd lose KE and need replacement barrels for every shot.
The one good thing it gets you is that it's not a good penetrator design. You want to deliver that KE to the mech and not punch clean through any airgaps in the internals. Say what you will about super advanced armor, but something going that fast with a penetrator design is going to put nice little holes in something without doing a lot of damage unless it hits something vital. Given that mechs had better be made to survive battle damage, I don't think a few holes are going to do that much unless they are through the pilot.
I'd go with a sabot-stabilized blunt headed, cylindrical projectile.
Also, is it just my browser, or is there some weird stuff with the forums - when scrolling across "report" on the previous post, my faction icon and a few other things jitter around. That's it - I'm leaving the Matrix. Gimme that red pill!
There is also evidence that not all Gauss Rifle slugs are spherical.
Chapter 02 of
Star Lord describes the Poland Main Model A Gauss Rifle of the CES-3R
Caesar as "[using] a series of magnets to accelerate a nickel-ferrous metal slug ten centimeters in diameter".
Since we know the needed volume to account for the Gauss Rifle slug's mass & the densities of nickel & iron/steel, we know that a sphere 10cm in diameter cannot be the solution.
Therefore, we know that the slugs fired by the Poland Main Model A Gauss Rifle are oblong/ovoid/ellipsoid rather than spherical.
We know that
the volume of an ellipsoid is given by V = (4/3)*pi*a*b*c, where a is a major radius and b & c are minor radii.
Since we know that b = c = 10cm for the Poland Main Model A's slug, the formula simplifies to V = (4/3)*pi*a*b^2.
Since we know that the 125 kg slug must have a volume between 14,029.2 cm^3 (if composed purely of nickel) and 15,923.6 cm^3 (if composed purely of iron/steel), we need simply solve for a.
For nickel:
a = ((3/4)*14,029.2)/(100*pi) = 33.492 cm
for iron/steel:
a = ((3/4)*15,923.6)/(100*pi) = 38.015 cm
So, we know that the Poland Main Model A's slug is 10 cm in diameter and between 33 and 38 cm long.
Edited by Strum Wealh, 10 August 2015 - 03:46 PM.