Prompted by a comment in another thread, I have been considering the interaction of Star Wars ships, specifically a squadron of Imperial-class Star Destroyers, with ships from the Honorverse, specifically a squadron of Medusa-class Podnaughts. (If you don't know what that is, go read On Basilisk Station, and then keep going)
My first thought is that TIE bombers will come as something of a shock to the Royal Manticoran Navy. They are far, far smaller than any armed vessel the RMN has ever imagined. They don't have a wedge, so they won't be detected instantly, and they can operate INSIDE the wedge, no problem. Proton torpedoes are, in my understanding, roughly equivalent to contact nukes, and each T/B carries 12 or so. (drawing from the TIE Fighter game)
On the other hand, RMN point defence is not to be trifled with. Once they detect the T/B and proton torpedoes, they are toast.
My second thought is that a Podnaught is about 1.3 KM long, similar to an ISD length of 1.6 KM. The impeller wedge of a Podnaught is "hundreds of kilometers" long and wide. That means that not only could a TIE Bomber operate inside the wedge, an entire squadron of ISD could operate inside the wedge, too. This would, of course, put the ISD in range of the energy batteries.
My third thought, prompted by the second thought, is that weapons range on the ISD is about 2 KM, and weapons range on a Podnaught, with Ghost Rider (because of course) is several light minutes. Fire control for 200 pods of 8 missiles each, times an eight-ship squadron is 12,800 missiles. They can launch that salvo every two minutes, ten times. That, of course, is likely to leave a mark. Further, ISD don't have the kind of point-defence required to survive attacks of that kind.
The biggest challenge facing the RMN would be finding the targets. An ISD is a big piece of metal, but only slightly bigger than a Podnaught. In Honorverse, primary targeting is by way of gravitic sensors, detecting the wedge of ships. Star Wars ships don't HAVE a wedge, so they would go undetected for some time.
The only thing that might save the Empire would be the unknown power output of ISD Shields. It is reasonable that Star Wars shield technology is far and away beyond that of the Honorverse. Planetary Shields are common enough, and a terrorist organization can get their hands on a ground facility shield strong enough to hold off bombardment from a squadron of capital ships. It is conceivable that Turbolasers are far more powerful than Grazers. It is not out of the question, therefore, that laserheads might simply not be powerful enough to concern an ISD.
If this were the case, then it would be energy weapons only. The RMN still has the range advantage, to an insane degree. RMN energy weapons have a range of one or two light seconds, while the squadron of ISD would have to first batter down a sidewall, then fly another few hundred kilometers just to get in weapons range of the hull, all under continual fire from energy mounts and point defense clusters. (although if the ISD is shrugging off a few thousand laser heads, point defences aren't going to bother it at all)
Sadly, I don't think there's a good way to measure either grasers, turbolasers, shields or sidewalls in a way that would allow us to make a useful comparison.
I welcome any comment, criticism, correction, or question.
Anyone who wants to learn more of the Honorverse, go read On Basilisk Station. I think Baen Free Ebooks Library passes it out for free. Be warned; David Weber is an acquired taste.