I'm more involved with sci fi RPG then TV. I generally avoid most startrek. Some ship building RPG's usually require hull surface area for jump drives or whatever there using instead. (Traveller most versions for example) Also makes them shootable.
Joy just used the new launcher backed up my titan WIP, over a million mass I would prefer to call it a mobile base. Just tested the jump drive 5% of ship mass, seconds to spool up for me but was draining 20mil e/sec, (the ship is power gen heavy) you jump directly forward max distance. Hold left click to charge on jump computer, Right click to activate. It takes me far longer to turn around, I could jump multiple times while turning 180 degrees.. Top speed is 41m/s so the jump drive is going to be a must. Everything of course subject to change. I notice that you can pre-charge it then leave it which would make escaping almost to easy.
Just as an idea maybe shields being shot to 0, might disable jump drive charging.