Life2.0 Liberation Asset Design Bureau
Technical Brief:
"Gigawatt-output Magnetoplasmadynamic Thrusters"
Technical Brief:
"Gigawatt-output Magnetoplasmadynamic Thrusters"

An MPD thruster uses a small propellant pump (the bottom being only just visible) and an electric field between the cathode (outer circle) and anode (inner spike) to accelerate ions at extremely high velocities with very small thrusts. As viewed on the display here, it is roughly one-third actual size based on CoaDE numbers when viewed on desktop.
In-Universe:
Magnetoplasmadynamic thrusters are a traditional electric propulsion system for RCS and automated applications. The exact method of operation consists of using a powerful electromagnetic field to apply force to ionised plasma propellant, which then accelerates. The exchange of momentum then accelerates the vessel. No combustion and need for only one propellant make it safer than a chemical rocket, which is able to be a dense liquid when stored, making it smaller than the equivalent chemical rocket. Lastly, the extremely high exhaust velocities give it delta-v a chemical rocket could only dream of, making it lighter when you reduce tank size to match.
The downside however, is high electricity supply, and being needed for a long time - with very low thrusts, even short and simple movements, such as re-orientating a ship, can take up to a minute, while applications using MPDs as main engines can be hours or days of thrust. In the context of Human efforts, initial development was limited by the high electricity requirement, with early studies finding a power requirement in the hundreds of kilowatts to get useful performance out of.
Thanks to Naomi choosing to put nuclear reactors everywhere however, we can really make use of them; MSI have designs going to even greater levels thanks to their zero-point power supplies.
We have designed a one gigawatt MPD that is suitable for propelling small ships - ~ 0.5 m/s^2 at 85,000 kg - or for RCS on larger ships while being a vast improvement on chemical rocket equivalent systems.
Declaring Officer: Head Of Spaceship Propulsion, Hoggagha
Out-Of-Universe:
Been playing around with some other CoaDE tools developing a mobile Hubble Space Telescope concept suitable for Life2.0's purposes - which are really quite extreme on delta-v; chemical rockets really do cease being useful as soon as you want to try interplanetary missions. Even nuclear thermal struggles outside Kidore's inner planets, they'd have to go pulsed or liquid reactor designs to get high enough specific impulse just to get to the other planets; Sol is theoretically doable to use chemical rockets for travelling the inner planets by contrast.
It turns out that they also work as RCS systems for Orion propelled ships, which is great, as Orion can only thrust in a straight line, for obvious reasons.
I must say I'm more sceptical of the numbers for these than I am for the numbers for Orion in CoaDE, as we simply don't know what MPDs at gigawatt throughput will cope like; we haven't even tried 0.01% of the power this thruster uses as, unlike Naomi, the powers that be in the real world are very wary about putting reactors using weapons-grade enriched uranium in space.
But it works in CoaDE, and works that much better than a conventional RCS system that I don't mind the high margin for error.
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