Not nacelles in the traditional sense, no. The secondary system will be inactive when not in use. A backup...nothing more, nothing less. Subsequently, I'm planning on having either retracting units only revealed during separation, or blow-out panels over pseudo-nacelle modules throughout the saucer's hull to evenly distribute the warp field (I'm leaning toward the latter, from a design and engineering standpoint...not to mention the fact that it'd look damn cool on-screen).
Nothing external, nothing overt. Certainly nothing dangerous to the crew (even when inactive). The system would take a certain amount of time to engage, obviously; that startup sequence would have to match the duration of separation protocol, if not beat it outright.
Besides...adding nacelles would just f*** up her lines something fierce, and I'm not about to do
that.
I also toyed with the idea of running secondary conduits from the secondary core...and tapping those power runs into the primary system at killswitch junctures. You know...a way of shunting power from the secondary core to the primary power runs just in case the primary core were to suffer malfunction, or ejection during a breach. This would allow the ship to remain in one piece, but still have limited warp capability (nothing greater than warp five, I should think...perhaps not even that much).
To be honest, one of my favorite design mantras is redundancy, redundancy, redundancy...which is, in itself, quite redundant.
Edited to add: Thanks for the QSD info,
sojourner...I'll keep that on the table. Actually, I was just thinking earlier today about which year/decade this ship should occupy, in terms of the completion of the first prototype (U.S.S.
Legacy, NX-80248). If I were to plug her in some time after 2380 or 2381, I think it would be safe to use the QSD as her primary propulsion system. Still not sure, though. I think I may have to look into the
Aventine's novel trilogy as well. Thoughts on this particular topic, anyone?
Oh...almost forgot. The secondary warp core will be mounted longitudinally. I know the last time I raised this particular detail, a long time ago in Trek Tech, people started frothing at the mouth. My only response at the time is the same one I use now: which axis offers more clearance for a long, narrow module of this type? With modern gravity manipulation, does up/down relative to the outer hull
really concern you that much, or affect M/AM reaction? Logically?
~Belisarius
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"All life is struggle, from first breath to last."
- Anonymous