Kubernetes, on 27 July 2016 - 11:38 AM, said:
That's only Gauss. The name auto-CANNON suggests it fires explosive shells. The AC20 flies at a whopping 540m/s. All kinetic?
And yes, I know that all the wonky weapons physics exist solely for gameplay. Any attempt to compare MWO weapons to real world counterparts reveals just how absurd the former really are.
Wintersdark, on 27 July 2016 - 11:55 AM, said:
A "whopping" 540 m/s = 540*360/1000 = 1944 km/h. 1 AC20 round = 142.8kg. Lets say roughly 2/3rds in the shell itself, and call it 95kg.
That's 13,851,000 joules of kinetic energy in a small shell that's going to be stopping in a short distance (mech armor cannot be very thick. Even assuming it was stopping in 1m, that would be 13,851kN of force. That's a TREMENDOUS impact.
Wintersdark, on 27 July 2016 - 03:15 PM, said:
but for game balance.
And of course that trying to apply real world physics to Battletech weapons is a good errand anyways.
Maybe Gauss rounds have more mass in casing or what have you, accounting for how the smaller and weapon accelerates a Gauss round to such high speeds?
*Shrugs*
You'd expect the Gauss projectile to have significantly less mass given the relative velocities.
Ultimately game balance wins any contest here though.
A HEDP 155mm shell that the US uses for artillery is just shy of 46kgs and with a Charge II moves about 450m/s (but flies out to nearly 4000m).
And the gauss is likely using a sabot since the books describe it as tungsten rod in some.