Plasm powered ships are multipurpose vehicles of very large rank of size and capabilities,which base their motricity in electromagnetic plasm energy and also some of their weaponry,as electromagnetic protection shields, plasm cannons and plasm knives emissions.
the Red Queen ship is an space Ironside Rolls Royce EMPulsar hollow turbines engineered, with a lenght of 3 hundred meters(yes,is big but so little compared with Space Commonwealth Imperial Destructors).Is equiped with a battery of 12 plasm cannons,and EM countermeasure full clothe shield(thats why is an electronic Ironside) that also works as EM plasm anti-projectile and anti-plasm knive and laserproof shield.
some scale references:
supercarrier ship Clemenceau(1957): 265Mts
ironside Dreadnought(1907): 160Mts