Connor MacLeod wrote:REading this again... I don't think he directed this specifically at you or anything you said,
I'm the one who said beam weapons were likely at least capital-ship level, otherwise they wouldn't make sense. They were directed at me.
Note though: I wasn't saying that beams were not variable in power. My argument then was that they probably had a high lower limit in power - still at least "capital ship level"; otherwise it'd be silly to deploy them. Why deploy a really weak particle beam weapon when you had projectile weapons?
Chitty found a good reason why they would still be good even at non-capital ship level (particle beam should still be faster than projectiles, hence ore accurate), so in that sense he was right.
Again this is a bad approach to take if you're trying to do 'in universe' analysis.
Unicorn is literally six episodes (or is 7 now?) worth of material, covering a very specific time frame. It's not a lot of material to miss.
This is why I keep referring to the VSBR - because that has a much more comprehensive explanation of the nuances in beam rifle outputs. I did look through the gun examples in Unicorn Stark kept mentioning, but in reality they're basically human-level arms scaled up to Mobile Suit level without real explanation. They're basically like the beam sabre also being turned into beam axes or beam polearms - cool, but doesn't really explain the core mechanics.
In case you missed it, the VSBR is a special beam rifle that has two firing modes:
1) A high-velocity firing mode, wherein the Minovsky mega-particles are fired at such speed that they can punch through even hitherto immune "I-field" shielding.
2) A low-velocity "raw damage" firing mode, which fires the mega-particles at a lower velocity.
Which does show that the power of a beam may have to do a lot more with the velocity at which it throws the mega particles. This actually jives very well with current beam rifle mechanics.
(This will be a bit long, so bear with me)
Originally, beam weapons were powered directly from a Minovsky reactor. Minovsky particles were taken out of the reactor, fused into mega particles, and then fired at the enemy. This took a lot of energy (and a pretty big Minovsky reactor pumping out a lot of particles), which meant that it was a capital ship only weapon.
The "breakthrough" in beam rifle miniaturization came when the Federation came up with the idea of storing mega-particles in an "e-cap". So now, a beam rifle can have enough mega-particles to fire a dozen or so shots. Later refinements would allow replaceable e-caps, so a Mobile Suit can theoretically keep firing forever as long as it brough enough reloads (coincidentally, e-caps seem much smaller than projectile magazines, which is why I said that's another advantage of the beam gun).
However, one long-standing "mystery" in the beam rifle equation is that most early Mobile Suits apparently lacked enough power to actually "fire" a beam rifle. The RX-78-2 can fire a beam rifle, but the Zaku II can't pick up the Gundam's beam rifle and fire it. Even the GM (mass-produced version of the Gundam) couldn't fire a full beam rifle; only the weaker beam spray gun that Chitty mentioned. That didn't seem to make sense - why can't you just store the energy to fire the rifle along with the e-cap?
Talking about how particle beams work in real life with Chitty made me realize the answer to this mystery - the e-cap stores mega-particles
only. To actually accelerate these particles to a damaging high-speed velocity, you still need energy from the Mobile Suit's reactor. The Gundam has a reactor powerful enough to power this particle acceleration. The GM has a reactor strong enough for only limited particle acceleration - hence its low-ranged beam spray gun. The Zaku II doesn't have enough power to do any acceleration at all.
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Also, some notes on your questions...
I'm reminded of the I-fields both Kou and Gato had in their mobile suits/armour at the end of STardust memory. They kept trading hits with beam weapons and visibly knocking each otehr back quite visibly. considerable impact behind each shot (although how much energy that translates to, of course, depends on beam velocity lol)
Yup, that's consistent. Back in 0083 the beams simply don't have the velocity to punch through the I-field, but impart enough force for a "push back". A couple of decades later, the beams can have a high enough velocity to punch through the I-field entirely.
That said, I still don't have an explanation for the Jegan+Shield pic Stark posted earlier. As he noted, the machine's shield took a hit and it basically came off unscathe. I don't think that can happen even with very weak particle beams (there should still be some damage due to heat/kinetic energy); more likely some anti-beam unobtanium is at work.
I also noted with all those astroid destructions in zeta - very much explosive iwth little overpenetration, unlike the mobile suits where you often saw beam weapons overpenetrating (explosive effects seemed more due to setting off volatiles or reactor inside suit or something like that - again indication that precision fire matters alot with a suit's ability to damage a target, whether its a capital ship or another suit or some other target.)
I don't really have good calcs for the asteroids, but I can comment on the Mobile Suit exploding bit.
The Minovsky-Fusion reactor is supposed to be highly stable thanks to a weak I-field around the reaction chamber. If the Mobile Suit is taken out due to normal battle damage, then the fusion reactor should simply shut down without going KABOOM.
However, a beam rifle hit apparently
can punch through this weak I-field, and this sudden collapse of I-field integrity causes a runaway chain reaction of sorts to cause the Mobile Sui to blow up spectacularly. The same applies to battleships, who essentially use the same fusion reactor tech.
There's also the fact suits sometimes 'explode' stuff, and sometimes only melt/burn it (you mentioned one example of that from Unicorn IIRC). I vaguely recall they can even vary according to duration too.
Burning happens more rarely, but it does happen. About a quarter of the original RX-78-2 is melted off during its last engagement after a direct beam hit. (Melting off an arm and a leg)
something that also struck out at me - beam sabers can in some models of suit be used as ranged ewapons as well as melee (Depending on configuration) and there are some obvious differences between how sabers and beam weapons might work too (and in the spinoff stuff I remember reading supposedly the beam saber is a forcefield confined plasma rather than a mass of particles at speed. How they may rlate or not relate can again be speculated on.)
Correct. Beam sabres are basically super-heated plasma contained within an I-field. The I-field itself does no damage (it's not composed of fused mega-particles, nor is it being stabbed at a high enough velocity), but matter simply passes through the I-field to get cooked by the super-heated plasma within.
Later on (around the same time the VSBR was developed), "Beam Shields" are developed which combine an I-field with a layer of super-heated plasma in between. This provides all-around protection - the I-field bounces off most beam shots, while the plasma destroys any solid munitions. They are explicitly outgrowths of the beam sabre technology, to the point that some battleship-sized beam shields can be converted into a giant beam sabre for "Drive me closer! I wanna hit them with my GIANT LASER SWORD" action.